A suicide bomb attack at a busy shopping area in the Turkish city of Istanbul has killed at least four people,
Another 36 were injured - 12 foreign nationals - as the bomb went off near a government building on Istiklal Street.
No-one has admitted carrying out the attack, the latest to target Turkey in recent months.
The Turkish government has blamed Kurdish militants for previous attacks and has retaliated against them.
Last week, Kurdish rebel group TAK admitted killing 35 people in the capital, Ankara, saying it was in revenge for
Turkish military operations against Kurds.
Last month, a bomb attack on a military convoy in Ankara killed 28 people and wounded dozens more.