"The rest of the attackers are now on the second and third floors of the hospital, firing on the Afghan security forces, who had cordoned off the area", Waziri said.
Armed men disguised as doctors attacked a military hospital near the U.S. embassy in Afghanistan on Wednesday, killing at least four people and injuring up to 15 others, in what some officials are labelling a "terrorist attack".
Afghanistan President Ashraf Ghani condemned the attacks during a speech honoring International Women's Day, saying the attack "trampled all human values", BBC reported".
"Together we put beds, chairs and whatever there was behind the door", he told Reuters after the siege ended late in the afternoon.
The incident underlines warnings by government officials that high-profile attacks in Kabul are likely to escalate this year.
Officials told The New York Times they worry about the kind of pressure that places on Afghanistan's security forces.
At one point, one of the assailants tried to break in.
"We stayed quiet and prayed for our safety".
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The attack comes while Taliban has warned Daesh's ringleader, Abu Bakr al-Baghdadi, against waging a parallel insurgency in Afghanistan.
The Taliban has denied any involvement in the terrorist attack.
"The attack claimed by the Islamic State group on the Sardar Daud Khan hospital leaves 50 wounded".
The government's chief executive officer, Abdullah Abdullah, addressed the ceremony for Fahim shortly after the attack.
There are no reports available regarding the exact number of casualties so far. "This is a criminal act".
The Taliban, who have been at war with the US -backed Afghan government for more than 15 years, typically step up their attacks in the spring, when they can more easily maneuver across the country's mountainous terrain. "We will never forgive these criminals".
Last summer, seven students, three police officers and two security guards were killed in the attack on the American University of Afghanistan campus in the capital. Clashes between terrorist and Security forces are ongoing, backup forces sent to suppress enemies.