An Afghan policeman keeps watch at the site of a suicide attack in Kabul, Afghanistan December 28, 2017. REUTERS/Omar Sobhani

Afghans gather in front of the Shiite cultural center after a suicide attack in Kabul, Afghanistan, Dec. 28, 2017. AP

An Afghan boy walks through the the scene of a suicide attack on a Shiite cultural center in Kabul, Afghanistan, Dec. 28, 2017. The attack occurred during a morning panel discussion on the anniversary of the Soviet. AP

Afghans are seen through a the shattered window of Shiite cultural center after a suicide attack in Kabul, Afghanistan, Dec. 28, 2017. Waheed Majrooh, a spokesman for the ministry of public health, said 41 people, including four women and two children, had been killed and 84 wounded, most suffering from burns. AP

An Afghan man takes a photograph at the scene of a suicide attack on a Shiite cultural center in Kabul, Afghanistan, Dec. 28, 2017. Islamic State said in an online statement that it was responsible for the attack, saying the centre received support from Iran. AP

Afghan Journalists take photographs of bloodstains at the scene of a suicide attack on a Shiite cultural center in Kabul, Afghanistan, Dec. 28, 2017. Suicide bombers stormed a Shi'ite cultural centre and news agency in the Afghan capital on Thursday, killing more than 40 people and wounding scores, many of them students attending a conference. AP