The Turkish government has promised to increase security on the country's border with Syria after 30 people were killed in a bombing yesterday in the town of Suruc.
Investigators think the blast was caused by a female suicide bomber from the Islamic State group.
The attack triggered violent protests in Istanbul, with police using water cannon, teargas and rubber bullets.
Its thought that those killed were mostly students who were about to cross into Syria to to take part in relief work in Kobane.
