The Islamic State also issued a warning earlier this year following an attack on the Iraqi Embassy in Kabul vowing to target Afghanistan's Shiites. NPR's Robert Siegel talks to Reuters' Kabul bureau chief James Mackenzie for an update on the details of the attack.
Commander: MOAB bomb meant to kill ISIS 02:03 " Our team is in the area and they are doing clearance, so the figure might change as they find more bodies", said Dawlat Waziri, a spokesman for the Afghan Ministry of Defense. A neighboring news agency, Afghan Voice, was also hit, prompting fears about the safety of media organizations and journalists in the country ravaged by militants.
The bomb reportedly killed dozens of students after exploding near the offices of a news agency.
Aamaq in its statement also claimed the center was funded by Iran and propagating Shiite beliefs.
In a statement released by the presidential palace, Ghani says: "The terrorist have killed our people".
The attack rocked the center in the basement of a building in the west of the city at around 10:30 a.m. (12.30 a.m ET) Thursday morning.
He called them attacks as against Islam and "all human values".More news: Less Than 1000 ISIS fighters Remain in Iraq and Syria, Coalition Says
The centre is near to the Afghan Voice Agency, a media outlet which earlier reports had suggested could be the target.
Interior Ministry spokesman Najib Danish says an unknown number of suicide attackers set off an explosion outside the center before storming it.
August 25: 20 people killed in an attack on a Shiite mosque, for which ISIS claims responsibility.
Two children were among the dead and 84 people were injured in the blast, according to a Health Ministry spokesman.
It was the latest claimed assault by the Middle Eastern jihadist group in Kabul, which in recent months has become one of the deadliest places in the war-torn country for civilians.
Afghanistan has the highest number of mine victims in the world, which along with other roadside bombs, kill or wound an estimated 140 people every month.