Pictures have emerged of the nine Britons detained in Turkey who were attempting to cross the border into Syria illegally.
The group, which consisted of three men, two women, and four children aged between one or two-years-old to 11, was arrested at approximately 3pm local time (1pm GMT) in Hatay province on 1 April.
A spokesman for the Turkish Army told The Independent: "Nine British people were arrested in Hatay. They wanted to enter Syria."
The Metropolitan Police believe around 600 Britons have travelled to Syria and Iraq since the conflict began, while around half are believed to have returned to the UK.
It was not known why the group were trying to go to Syria, but a number of British people intending to join Isis have chosen to travel through Turkey.
Fadi Hakura, Turkey analyst for Chatham House, told BBC Radio 4's Today programme that the recent arrests showed the Turkish government was "taking more effective measures to control the flow of fighters and supporters into Syria".
Three schoolgirls from north London travelled to north-central Syria, the de facto capital of Isis territory, in February. It is understood they were following another 15-year-old girl, Sharmeena Begum, who travelled there in December 2014.
In March, three teenagers, two aged 17 and one aged 19, were arrested in Turkey after authorities there received a tip-off from British police. They are currently on police bail.
A 21-year-old British woman was also arrested last month while standing at a bus stop in Ankara. Images on the woman's phone and correspondence reportedly indicated she was planning to travel to Isis-held territory.
In pictures: Anti-Isis protests in Jordan
In pictures: Anti-Isis protests in Jordan
1/15 Amman, Jordan
Members of Jordan's Al Assaf tribe burn a ''Wanted Dead'' poster of Islamic State leader Abu Bakr al Baghdadi at a rally
2/15 Amman, Jordan
Jordanian protesters carry an effigy of leader of the militant Islamic State Abu Bakr al-Baghdadi, during a march after Friday prayers in downtown Amman
3/15 Amman, Jordan
Jordanian Queen Rania (C) holds a placard during a demonstration to express solidarity with the pilot murdered by the Islamic State
4/15 Amman, Jordan
A protester dressed in a Jordanian flag joins others as they hold up pictures of Jordanian King Abdullah and Jordanian pilot Muath al-Kasaesbeh, while chanting slogans during a march against Islamic State
5/15 Amman, Jordan
Jordanians hold banners shouting slogans during a demonstration to express their solidarity with the pilot murdered by the Islamic State
6/15 Amman, Jordan
Jordanians carry banners and pictures of executed Jordanian pilot Muath al-Kassasbeh while shouting slogans against the group calling themselves the Islamic State, during a march after noon pray in downtown Amman
7/15 Amman, Jordan
Protesters hold up pictures of Jordan's King Abdullah and pilot Muath al-Kasaesbeh as they chant slogans during a rally in Amman to show their loyalty to the King and against the Islamic State
8/15 Amman, Jordan
Jordanians chant slogans to show their support for the government against terror during a rally
9/15 Amman, Jordan
Jawdat al-Kaseasbeh, a brother of slain Jordanians pilot Muath al-Kaseasbeh, reacts to people gathering to show their support for the government against terror during a rally
10/15 Amman, Jordan
A Jordanian protester kisses a poster bearing the image of Jordanian pilot Muath al-Kasaesbeh during a rally to show their loyalty to King Abdullah and against the Islamic State
11/15 Amman, Jordan
A Jordanian shouts slogans during a rally against the Islamic state group and in reaction to the burning alive of Jordanian pilot Maaz al-Kassasbeh by the group's militants
12/15 Amman, Jordan
Jordanians carry pictures of pilot Maaz al-Kassasbeh at a protest against Islamic State
13/15 Amman, Jordan
Supporters and family members of Jordanian pilot Lt. Muath al-Kaseasbeh express their anger at his murder at the tribal gathering chamber in Amman, Jordan
14/15 Aye Village, Karak, Jordan
The King of Jordan, Abdullah II (L), embracing Safi al-Kassasbeh (R), the father of the recently executed Jordanian pilot
15/15 Aye Village, Karak, Jordan
Jordan's Queen Rania offers her condolences to the family of Jordanian pilot Muath al-Kasaesbeh, at their family home of Muath
REUTERS/Petra News Agency
Meanwhile the number of fighters leaving home to join al-Qaida and Isis in Iraq, Syria and other countries has spiked to more than 25,000 from over 100 nations, according to a new UN report.
Along with some 22,000 foreign fighters in Syria and Iraq, there were also reported to be 6,500 in Afghanistan and hundreds more in Yemen, Libya, Pakistan and Somalia.
The panel of experts monitoring UN sanctions against al-Qaida said in the report obtained by The Associated Press on 1 April that its analysis indicates the number of foreign terrorist fighters worldwide increased by 71 percent between mid-2014 and March 2015.
It said the scale of the problem has increased over the past three years and the flow of foreign fighters "is higher than it has ever been historically".
The number of countries the fighters come from has also risen dramatically from a small group in the 1990s to over 100 — more than half the countries in the world — including some that have never had previous links with al-Qaida associated groups.
Additional reporting by APReuse content