New Delhi, March 16 -- Pakistan's president Saturday warned neighboring Afghanistan's Taliban government that it had " crossed a red line " by launching drone attacks on civilian areas in Pakistan, and hours later the country reportedly conducted strikes on an Afghan drone storage facility.

The statement by Asif Ali Zardari was the latest in what has become the deadliest fighting yet between the two South Asian neighbors. The cross-border clashes, which erupted late last month, have shown no signs of abating despite efforts by China and Turkey to broker a ceasefire.

Pakistan said its forces intercepted the drones launched Friday but that falling debris injured two children in the city of Quetta and two people elsewhere in the country. ...