A car bomb has killed four people and injured 52 in the Kurdish-dominated city of Diyarbakir in south-eastern Turkey, PM Recep Tayyip Erdogan says.
A car bomb has killed four people and injured 68 in the Kurdish-dominated city of Diyarbakir in south-eastern Turkey, officials say.
It targeted a military vehicle as it passed through the centre, reports say.
It was set off remotely and targeted a military bus as it passed through the city centre, a local governor said.
Turkish TV showed several vehicles engulfed in flames as emergency vehicles rushed to the scene.
Turkish TV showed several vehicles engulfed in flames as emergency vehicles rushed to the scene.
Police said they suspected Kurdish militants of carrying out the attack. Diyarbakir is the biggest city in the mainly Kurdish south-east.
Police said they suspected Kurdish militants. Diyarbakir is the biggest city in the mainly Kurdish south-east.
Soldiers and civilians, including schoolchildren, are reported to be among the wounded.
Speaking in the capital, Ankara, Prime Minister Recep Tayyip Erdogan condemned the blast as a "terrorist act".
Turkish troops who are fighting PKK Kurdish rebels both inside Turkey and in nearby northern Iraq are based in the area.
Turkish troops who are fighting PKK Kurdish rebels both inside Turkey and in nearby northern Iraq are based in the area.
Last week, Turkish warplanes launched strikes on Kurdish rebel targets in northern Iraq.
Last week, Turkish warplanes launched strikes on Kurdish rebel targets in northern Iraq.
There have been a number of explosions in Diyarbakir in the past, the most recent of which was caused by a bomb at a bus stop in 2006.
There have been a number of explosions in Diyarbakir in the past, the most recent of which was caused by a bomb at a bus stop in 2006.
An unexploded bomb was found two years ago near the location of Thursday's blast.
An unexploded bomb was found two years ago near the location of Thursday's blast.
Huge blaze
Huge blaze
The explosion happened during rush hour in an area close to a military residential complex and a helicopter base, reports say.
The explosion happened during rush hour in an area close to a military residential complex and a helicopter base, reports say.
A correspondent for the BBC Turkish Service who was only about 70 metres away from the blast said there was an enormous explosion, which caused a number of vehicles to catch fire and windows to shatter.
A correspondent for the BBC Turkish Service who was only about 70 metres away from the blast said there was an enormous explosion, which caused a number of vehicles to catch fire and windows to shatter.
He said he saw two or three people lying unconscious on the ground.
He said he saw two or three people lying unconscious on the ground.
Some soldiers were said to be amongst the injured.
Some soldiers were said to be amongst the injured.
Turkish television has been carrying pictures of the huge blaze caused by the blast, which it says could be heard 3km (2 miles) away.
Turkish television has been carrying pictures of the huge blaze caused by the blast, which it says could be heard 3km (two miles) away.
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