Gunmen killed four Turkish police officers today after opening fire on their police station in Dortyol, in the south eastern province of Hatay, state-run news agency Anatolian reported.
The gunfire came from a delivery truck with a forged registration plate which approached the police station, Anatolian said. It was not clear if they were rebels from the Kurdistan Workers Party (PKK), who have recently stepped up attacks on Turkish security forces.
Earlier this month PKK fighters fired a rocket at a police station in the south eastern province of Siirt injuring eight people, including police officers and soldiers.
Fighting has intensified since the PKK ended a 14-month ceasefire at the start of June, accusing the government of not being serious in its bid to boost Kurdish minority rights and bring to an end an insurgency that began in 1984.
More than 40,000 people have died in the 26-year conflict.
An estimated 100 military personnel have been killed so far this year, already exceeding last year's death toll.
Most of the PKK's estimated 4,000 fighters are based in the mountains of neighbouring northern Iraq.
Turkey's government is under pressure to clamp down on violence ahead of parliamentary elections due in July 2011.
Reuters