KABUL, Feb. 28 (Xinhua) -- At least 52 people were killed and 66 others injured in Pakistani airstrikes in Afghanistan since last Sunday, Hamdullah Fitrat, deputy spokesman for the Afghan government, said on Saturday.

According to the official, the casualties were reported across the eastern provinces of Nangarhar, Paktika, Khost and Kunar, as well as southern Kandahar.

Clashes erupted along the border between the two countries about a week ago. Since then, officials have reported that the cross-border hostilities have resulted in numerous casualties from both sides.