killed in attack on Kabul's Sardar Mohammad Daud Khan Hospital.

 More than 20 killed in attack on Kabul's Sardar Mohammad Daud Khan Hospital.

An attack on a military hospital in the city has killed more than 20 people and injured at least 16, a health ministry official in Kabul told the BBC.

Two explosions took place before the attack on the 400-bed Sardar Mohammad Daud Khan Hospital

More than 20 killed in attack on Kabul's Sardar Mohammad Daud Khan Hospital.

, followed by gunfire. One blast occurred in front of the hospital, while another occurred nearby.

Eyewitnesses say the attackers then entered the hospital.

Taliban spokesman Bilal Karimi told the BBC that militants from the Islamic State of Khorasan first blew up the hospital gate and entered the hospital compound.

According to Block Karimi, Taliban fighters have killed five Islamic State militants in Khorasan.

Video footage and photos from Kabul show clouds of smoke in the air over Kabul and the sound of gunfire.

Smoke rises after explosions near a military hospital.

The Taliban have taken control of Afghanistan since the US withdrew from the country. IS Khorasan, a local branch of the so-called Islamic State extremist organization, has begun targeting the Taliban and civilians.