KARACHI: The United Nations Assistance Mission ​in Afghanistan has put the death toll at 143 in the bombing of ‌a ‌Kabul ​drug ‌rehab ⁠center ​by Pakistan, an official ⁠told Reuters on Wednesday.

The Afghan Taliban government had said ⁠more than ‌400 ‌people were killed ​and ‌265 injured ‌in the air strike on Monday night.

Pakistan has ‌rejected the Afghan Taliban claim ⁠that ⁠it targeted a drug rehab center saying it “precisely targeted military installations and terrorist support infrastructure.”

Allies-turned-foes ⁠Pakistan and Afghanistan’s worst fighting in years erupted last month, with Pakistani air strikes inside Afghanistan ​that Islamabad said targeted militant strongholds. Afghanistan called the strikes a violation of its sovereignty that ​targeted civilians, and launched retaliatory operations.

Over the last three weeks, both countries have launched air and drone strikes against each other and also engaged in ground firing across their 2,600-km (1,600-mile) border, with each claiming ​to have inflicted heavy damage and killed hundreds of opposition troops, without providing evidence.