Turkish news agency Dogan reports at least 20 killed in bomb attack in Turkish capital Ankara

Turkey's Dogan News agency is reporting that at least 20 people have been killed in bomb explosions in the center of the Turkish capital Ankara.

The attack on Saturday morning apparently targeted a peace rally to denounce the increased violence between Kurdish rebels and Turkish security forces.

Television footage from the news agency showed several people lying injured on the streets.

No other details were immediately available.