Twin bombings near the Defence Ministry in Afghan capital Kabul on Monday have killed at least 24 people, officials said.
Public Health Ministry spokesman Ismail Kawasi said another 91 people were wounded in Monday's attack, which was claimed by the Taliban.
Deputy Defense Ministry spokesman Mohammad Radmanish said the second bombing on Monday was caused by a suicide attacker who struck the area of the first blast after security forces gathered there.
Taliban spokesman Zabihullah Mujahid said his group had carried out the attack. The insurgents have been fighting to overthrow the U.S.-backed government for 15 years, and frequently target Afghan security forces.
The recent attack comes less than two weeks after 13 people were killed in a suicide attack on the American University in Kabul.