Investigators focus on home-grown ISIS cell in Turkey bomb probe

ISTANBUL/ANKARA - Turkish investigators believe an Islamic State cell from the southeastern town of Adiyaman, thought to have been behind previous attacks in the country, may have carried out a double suicide bombing that killed 97 people in the capital Ankara.
Turkey's Human Rights Association said several families from the town had approached authorities in recent years expressing concern their sons could have left to join Islamic State in Syria. It said there had been no proper investigation.
Two bombs exploded seconds apart on Saturday, targeting a rally of pro-Kurdish activists and civic groups near Ankara's main train station, three weeks ahead of a general election.