KABUL: A suicide bombing on Saturday at an education centre in Afghanistan's capital Kabul killed at least 13 people and wounded dozens, officials said.

A Taliban spokesman on Twitter denied responsibility for the attack, which came at a sensitive time as teams for the insurgents and government meet in Qatar to seek a peace deal even as violence rises and the United States withdraws troops.

A Ministry of Interior spokesman, Tariq Arian, cited security guards as identifying a bomber who detonated explosives in the street outside the Kawsar-e Danish educational centre.

Health Ministry spokesman Saeed Jami said 13 bodies had been recovered and 30 injured people transported by ambulance to hospitals. Casualties could rise, he added.