Worker hurt in British embassy blast
The device exploded in a post room at the site in Zagreb at around 6.30am BST, but a spokesman claimed the male employee had only "very minor" injuries.
Security has been stepped up at the site as a result of the blast, but embassy officials could not confirm if a specific threat had been received.
Ambassador Sir John Ramsden has gone to the scene as a joint investigation with local police is carried out.
Eyewitnesses said there was no visible damage to the embassy building, in a commercial area on the edge of downtown Zagreb.
Croatian policemen were this morning guarding the site and sniffer dogs were used as officers carried out searches of the premises.
A FCO spokeswoman said: "One person suffered minor injuries when an explosive device detonated in a post room.
"Their injuries are not thought to be life-threatening and an inquiry is under way."
In May, two home-made hand grenades were hurled at a building housing the British Consulate in New York, causing minor damage.
Officials there could not be clear whether the consulate itself had been targeted, but the strike came on the day of Britain's General Election.
- 1 Planes go hybrid-electric in important step to greener flight
- 4 Hip hop is both racial and political, and for Iggy Azalea to suggest otherwise is insulting
- 5 Man hospitalised with pneumonia after downing eggnog at office Christmas party
Antonio Martin shooting: Black teenager may have tried to ambush patrolman, says police officer's lawyer
Orphan kangaroos spend Christmas without their parents
Northern Lights above Britain: Stunning Aurora Borealis illuminates Northumberland sky on Christmas Eve
New route to Mars could make manned mission much cheaper and easier
Isis 'did not shoot down Jordan war plane' before capturing pilot, says US
British actor Idris Elba cannot star as James Bond because he is black, says shock jock Rush Limbaugh
Rozanne Duncan: Ukip expels councillor for 'jaw-dropping' comments made in BBC TV interview
Germany anti-Islam protests: 17,000 march on Dresden against 'Islamification of the West'
Ukip member gets into Christmas spirit with Union Flag plea to Santa 'for our country back'
BBC director Danny Cohen: Rising UK antisemitism makes me feel more uncomfortable than ever
Alex Salmond has 'broken his word to the Scottish people' says Scottish Lib Dem leader
£20000 - £35000 per annum: Recruitment Genius: This full service social media ...
£24000 - £35000 per annum: Recruitment Genius: We are 'Changemakers in retail'...
Very Competitive: Austen Lloyd: Senior Conveyancer - South West We are see...
Excellent Salary: Austen Lloyd: DORSET MARKET TOWN - SENIOR PROPERTY SOLICITOR...