Turkey’s largest city, Istanbul, was rocked by twin attacks on the U.S. consulate and a police station on Monday.
A suicide bomber detonated a vehicle packed with explosives at a police station in the Sultanbeyli district on the Asian side of Istanbul just after midnight, wounding ten people, three of them were policemen.
Clashes with police then continued throughout the night as other militants fired on the police station.
Local media reports that two militants were killed by the police but their political affiliation was not made clear. One policeman also died in the clash.
Meanwhile, two militants launched a gun attack against the US consulate building in Istinye on the outskirts of Istanbul city.
Turkish media revealed that one of the attacker was a woman, who was later captured after being wounded. The other who escaped is suspected to be a man.
Neither media nor the authorities indicated who may have carried out the attacks.
Hours later, four Turkish police officers were killed in a roadside bomb attack in the Silopi district of Sirnak province bordering Iraq and Syria which has been blamed on Kurdish militants, local media reports.
Shortly after, gunmen opened fire on a military helicopter, killing one soldier.
Tension between the Turkish government and Kurdish militants has been rising.
Turkey had also recently announced it was taking a more active role against Islamic State (IS) militants.
There was no immediate claim of responsibility for either of the attacks, but U.S. diplomatic missions and police stations have been targeted by far-left groups in Turkey in the past.