At least six people have been killed and 81 wounded in an explosion in a busy area of central Istanbul, Turkish authorities have said.
The blast happened at about 16:20 local time (13:20 GMT) on Sunday in a shopping street in the Taksim Square area. Turkey has blamed Kurdish rebels.
A suspect – a Syrian woman – has been arrested, the interior minister said.
Vice-President Fuat Oktay earlier said the blast was thought to be a terrorist attack carried out by a woman.