Story highlights ISIS claims responsibility, but Turks blame PKK

Explosion comes hours after opposition party leaders were arrested

Istanbul (CNN) A car bomb targeting a police station in southeastern Turkey has killed seven civilians and two police officers, according to state-run Anadolu news agency.

Earlier on Friday morning, Prime Minister Binali Yildirim said 100 people were injured in the explosion, 93 of whom have since been released from hospitals.

ISIS claimed responsibility late Friday, according to a statement circulated online by the Amaq agency which is affiliated with the terror group.

The claim conflicts with an earlier statement from Turkish authorities who blamed the Kurdistan Workers' Party (PKK) for the attack.

A large explosion hit the largest city in Turkey's mainly Kurdish southeast region, Anadolu reported.

The bomb, which damaged cars and nearby building facades, rocked the heavily-populated Baglar district in central Diyarbakir shortly before 8 a.m. local time, the provincial governor's office said in a statement.

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