The exact number killed in Monday night's strike by Pakistan is still not known, but is feared to be in the hundreds.

Rescuers recovered more bodies from the rubble of a drug rehabilitation hospital in Kabul on Tuesday after officials said an overnight airstrike killed more than 400 people in a dramatic escalation of a conflict between Pakistan and Afghanistan that is now in its third week.

Afghanistan’s deputy government spokesman said early Tuesday the death toll from an airstrike by Pakistan that hit a hospital treating drug users in the Afghan capital Kabul has increased to 400. Residents and volunteers inspect the site of a late-Monday airstrike at a drug rehabilitation hospital in Kabul,

According to deputy government spokesperson Hamdullah Fitrat, about 250 more people were reported injured.in the airstrike that hit the hospital around 9 pm local time, destroying large sections of the 2,