For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails
An emergency evacuation took place at the University of Bristol this term, it has been revealed, after a student accidentally made the same explosive that was used in the Paris terror attacks .
An investigation by Bristol University found that triacetone triperoxide (TATP) was “unintentionally formed during a routine procedure”, it was reported.
A cordon was set up around the university's chemistry block during the incident earlier this month.
A controlled explosion was later carried out and there were no reported injuries.
The post-graduate student created the highly dangerous substance as a by-product of another experiment, the inquiry found.
TATP is the same chemical used in bomb vests worn by militants in the 2015 Paris attacks , the London 7/7 bombings , and was found by Belgian police following similar attacks in Brussels last year .
Show all 34 1 /34Student news in pictures South Korean policemen detain a student demonstrator during a protest against South Korean President Park Geun-Hye
EPA
South Korean policemen detain student protestors during a protest against South Korean President Park Geun-Hye outside the National Assembly in Seoul, South Korea. The protesters demanded that the parliament takes steps to impeach President Park Geun-Hye
EPA
Filipino demonstrators face off with anti-riot police during a protest near the US Embassy in Manila, Philippine
EPA
Hundreds of protesters including Indigenous People, students and militant groups marched towards the US Embassy to protest against the presence of US military troops and condemning the violent dispersal which left at least forty people hurt including twenty police officers and three people who were run over by a police van
EPA
A federal judge in Mexico has ordered that a once-fugitive police chief be held on charges of kidnapping in the disappearance of 43 students
A man holds up a photograph of a missing student with a caption reading 'We are missing 43,' during a meeting marking the 25-month anniversary of the disappearances of 43 students in the southern state of Guerrero, in Mexico City. A federal judge in Mexico has ordered that a once-fugitive police chief be held on charges of kidnapping in the disappearance of 43 students
AP
Miguel Perez, an intern student from the University of Puerto Rico School of Medicine, puts away his cell phone before walking into the operating room at the Dr. Isaac Gonzalez MartÌnez Oncological Hospital in San Juan, Puerto Rico. Once they complete their general surgery training, many residents are moving to the United States in search of better wages, one of the main factors linked to the current shortage of specialists in the Island
Fewer EU students have applied to start university courses in the UK next autumn. There was a 9% fall in the numbers who had applied for courses, according to admissions service UCAS.
PA wire
University students protest against President Nicolas Maduro, in Caracas, Venezuela. Masses of protesters jammed the streets of Venezuela's capital on the heels of a move by congress to open a political trial against Maduro, whose allies have blocked moves for a recall election
AP
University students protest against President Nicolas Maduro, in Caracas, Venezuela
AP
Thousands, most of them high school students, march during a demonstration in Madrid, Spain, on a one day strike to protest about the country's education law that increases the number of annual exams
AP
Students gather on the west mall to confront the Young Conservatives of Texas student organization over a controversial bake sale on The University of Texas campus in Austin, Texas. The Young Conservatives of Texas chapter at the University of Texas-Austin sparked the protest with an affirmative action bake sale. The club encouraged students to buy a cookie and talk about the disastrous policy that is affirmative action
Donald Parish Jr, right, confronts Electrical and Computer Engineering senior Dewayne Perry over a controversial bake sale on The University of Texas campus in Austin, Texas. The Young Conservatives of Texas chapter at the University of Texas-Austin sparked the protest with an affirmative action bake sale. The club encouraged students to buy a cookie and talk about the disastrous policy that is affirmative action
AP
Brigham Young University announced that students who report sexual assault will no longer be investigated for possible violations of the Mormon-owned school's strict honor code that bans such things as alcohol use
AP
Students of secondary education march to protest against the final examinations and LOMCE (The Improvement Quality Education Law) law, after a call by trade unions, in Murcia, Spain
EPA
South African police have used stun grenades and rubber bullets to disperse hundreds of protesters who had marched to the parliament building to call for free university education, where the finance minister was giving a budget speech
AP
Police break up student protests outside the parliament in Cape Town, South Africa
Reuters
South African Policemen fire rubber bullets at student protestors in Cape Town, South Africa
AP
A student protestor is hit by a rubber bullet in Cape Town, South Africa
AP
An injured student is helped by colleagues during protest outside the parliament during South African Finance Minister Pravin Gordhan's medium term budget speech in Cape Town, South Africa
Reuters
Plaintiffs and bereaved families of elementary school students killed in the tsunami that followed a major earthquake in northeastern Japan in 2011, show banners that say 'victory in a suit filed with the Sendai District Court' in Sendai. A Japanese court ordered municipalities to pay $13.7 million dollars to families of school children who were swept away to their deaths by the 2011 tsunami
Getty
A group of student at Ewha Womans University calls for a thorough investigation into those involved in years of engagement with state affairs backstage by Choi Soon-sil, a personal confidante of South Korean President Park Geun-hye, at the school's front gate in Seoul, South Korea
EPA
Students raise placards during a strike action called by the student union, in Madrid against university entry exams
Getty
Libyans throw a newly graduated student into a fountain as they celebrate during the graduation ceremony for students from the Faculty of Pharmacy at the Al-Arab University in the eastern Libyan city of Benghazi
Getty
Libyans celebrate as they attend the graduation ceremony for students from the Faculty of Pharmacy at the Al-Arab University in the eastern Libyan city of Benghazi
Getty
Libyans celebrate as they attend the graduation ceremony for students from the Faculty of Pharmacy at the Al-Arab University in the eastern Libyan city of Benghazi
Getty
Thousands of Thai Catholic students take part in mourning tributes and in singing the Thai Royal Anthem to honour late Thai King Bhumibol Adulyadej at Saint Dominic School in Bangkok, Thailand
EPA
Students of Silpakorn University paint portraits of the late Thai King Bhumibol Adulyadej at the university campus in Bangkok
Getty
A student of Silpakorn University paints a portrait of the late Thai King Bhumibol Adulyadej at the university campus in Bangkok
Getty
St Andrews University students take part in a foam fight known as Raisin Monday in the Lower College Lawn behind St Salvator's Quadrangle following the Raisin Weekend
PA wire
St Andrews University students take part in a foam fight known as Raisin Monday in the Lower College Lawn behind St Salvator's Quadrangle following the Raisin Weekend, an annual tradition where student 'parents' inflict tasks on the unfortunate first-years they have adopted as 'children' as part of a mentoring scheme
PA wire
Students at the Cuba's National Ballet School (ENB) in Havana, Cuba
Reuters
Students at the Cuba's National Ballet School (ENB) take part in a practice in Havana, Cuba
Reuters
Students at the Cuba's National Ballet School (ENB) wait in line to enter a classroom in Havana, Cuba
Reuters
Hundreds of staff and students at the university's School of Chemistry were evacuated after the chemical was made.
Police confirmed they are not treating the incident as suspicious.
In a statement, a Bristol University spokesman said: Following a full investigation, we can confirm that the chemical, triacetone triperoxide (TATP), was unintentionally formed during a routine procedure carried out by a PhD student.
“The student was following a published literature method and the risk of TATP as a potential by-product had been identified during the risk assessment process.
He added: ”We have robust contingency plans in place to deal with incidents of this nature.
“As soon as the presence of TATP was identified the student immediately notified those responsible for laboratory safety in the school.
”A series of actions were then taken which resulted in the precautionary evacuation of the chemistry building and surrounding buildings and the controlled disposal of the substance by the emergency services.“
The university said it was reviewing its procedures to ”determine whether additional checks“ could be carried out before similar work.
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies