The United Nations urged India and Pakistan to show “maximum restraint” as the nuclear-armed rivals imposed tit-for-tat diplomatic measures over a deadly shooting in Kashmir.

India and Pakistan exchanged an escalating series of tit-for-tat diplomatic measures yesterday after New Delhi blamed its arch-rival for backing a deadly shooting attack in contested Kashmir.

Says Pakistan PMO after Shehbaz meets top military officials

The announcement from the Pakistan Prime Minister's Office followed a meeting of the National Security Committee, a day after India said there were cross-border elements to Tuesday's attack

Here are key events in their troubled relationship

Pakistan says three of its soldiers are killed in a cross-border exchange of fire in the contested Kashmir region, but India denies that five of its troops are dead too.

Pakistan will return a captured pilot "as a peace gesture" to India, Pakistan's Prime Minister Imran Khan says, amid efforts by the United States to defuse a crisis between the two nuclear powers a day after both downed enemy jets.

Restraint is no longer an option. Action is. That is the message sent out by the Indian Air Force mounting the lightning attack on terror camps deep inside Pakistan on February 26.

The ongoing tension between India and Pakistan is taking a dangerous turn. The Indian air force crossed Pakistani airspace and carried out strikes against alleged terrorist training camps within Pakistan-administered territory, followed by Pakistan's own airstrike.

This is for the first time since 1971 that the air force of one of the two neighbours—India and Pakistan—has crossed the international border and launched strikes on the other's territory.