Two unexploded rockets were traced after midnight near an Indian outpost along the border dividing the Punjab region between the two countries, said K. Srinivasan, a deputy inspector-general of India's Border Security Force. But Nadeem Raza, a spokesman for the Pakistan Rangers, said India's allegations were false.

He said that an explosion was heard at about 11:30 p.m., after which Indians fired mortars into Pakistani territory.

Saturday's skirmish came a day after a long gunfight ended between Indian security forces and militants in Srinagar, the summer capital of India's Jammu and Kashmir state.

The border between India and Pakistan is disputed in the Kashmir region, where India accuses Pakistan of fueling an insurgency. The two nations have fought three wars over the territory since their independence in 1947 and routinely exchanged fire along the border, known as the Line of Control, until a 2003 ceasefire agreement.