Pakistan and India — nuclear-armed rivals sharing a border in a flashpoint region — are trading artillery fire and threats of retaliation as tensions escalate after a May 7 Indian attack.

The map shows that the airspace over northern India and southern Pakistan has been cleared, with Pakistan's entire airspace free of civilian aircraft, except a few flights.

India and Pakistan both claimed victory on Sunday after agreeing to a truce in a rapidly escalating conflict that was sparked by a deadly terrorist attack on the Indian side of Kashmir last month ...