Before New Delhi and Islamabad agreed to a ceasefire following days of deadly jet fighter, missile, drone and artillery attacks, two videos were shared in posts falsely claiming they showed Indian and Pakistani aircraft shot out of the sky.

NEW DELHI — India and Pakistan agreed to an immediate ceasefire on Saturday, halting days of clashes that killed dozens of people and pushed the nuclear-armed neighbors to the brink of war.

Civilian airports were reopened and stocks jumped in both nations, signs of confidence that the agreement to halt the most alarming fighting in decades was holding.