A car bomb attack on a police vehicle in the Turkish capital Istanbul has killed 11 people.
Turkey's president condemned the attack, saying the fight against terrorists would continue to the end.
So-called Islamic State and the outlawed Kurdistan Workers' Party (PKK) have been responsible for recent deadly bombings in Turkey.
Foreign Secretary Philip Hammond has condemned the bomb attack in Istanbul which killed 11 people and injured a further 36.
Mr Hammond said on Twitter that his thoughts are with the victims of the "senseless and appalling act of violence".
US ambassador to Turkey John Bass also condemned the "barbarous terror attack", and extended condolences to victims and their families.
Turkey's President Recep Tayyip Erdogan visited victims being treated in hospital today, and said the country would fight terrorists "to the end".
No-one has yet claimed responsibility for the attack, which occurred during rush hour in the central Istanbul district of Vezneciler.
It is the fourth major bombing in Turkey's biggest city this year.
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