Car explodes at Turkey checkpoint

A suspected suicide bomber has detonated a car packed with explosives in southern Turkey, reports say.

At least six policemen were injured during the blast at a motorway checkpoint near the city of Mersin, according to CNN Turk.

Television footage showed images of firefighters trying to extinguish flames at the scene of the incident.

Reports said police had been tipped off about the car when they stopped it some 10km (six miles) from the port city.

"We are considering the possibility of a suicide bomber," Mersin Governor Huseyin Aksoy said, Anatolia news agency reports.

Police have confirmed an explosion took place, causing casualties but provided no more details. Earlier reports from CNN Turk had suggested that two men may have been killed in the blast.

It was not immediately clear who might be behind the attack, though Islamist militants, Kurdish and leftist guerrillas have all carried out bomb attacks in Turkey in the past.