In pictures: Deadly car bomb hits Istanbul

• 

  People stand next to a wounded man at the site of a blast in the centre of Ankara, September 20, 2011. A bomb blast rocked the centre of the Turkish capital Ankara on Tuesday and some media reports said two people were killed, while a local mayor said nobody was dead but three people were seriously wounded. REUTERS/Str (TURKEY - Tags: CONFLICT SOCIETY DISASTER) TURKEY OUT. NO COMMERCIAL OR EDITORIAL SALES IN TURKEY. TEMPLATE OUT *** Local Caption *** CVI166_TURKEY-EXPLO_0920_11.JPG

• 

  Medics carry a wounded man from the site of the blast. Stringer / Reuters

• 

  Fire-fighters work at the site. Stringer / Reuters

• 

  ANKARA // TURKEY Flames are seen in a street after a blast in central Ankara September 20, 2011. A bomb blast rocked the centre of the Turkish capital Ankara, reports said three people were killed and 15 wounded. Omer Kaya / Reuters

• 

  Burnt and damaged cars are seen at the site. The prosecutor's office said the blast was a terrorist attack. AP Photo

• 

  Fire fighters are seen working at the site, there was no immediate claim of responsibility, but the attack comes at a time when Kurdish rebels fighting for autonomy in southeastern Turkey have escalated their attacks on Turkish targets. AP Photo