At least 400 people were killed and 250 injured in an air strike by Pakistan on a drug users rehabilitation hospital in Kabul, a spokesman of the Afghan Taliban government said on Tuesday, a sharp escalation in the conflict between the neighbours. At least 400 people were killed and 250 injured in an air strike by Pakistan on a drug users rehabilitation hospital in Kabul, a spokesman of the Afghan Taliban government said on Tuesday, a sharp escalation in the conflict between the neighbours. Pa... [4319 chars]