Sounds of explosions and drone sightings engulfed the skies of the India-Pakistan border, prompting New Delhi to issue a late-night warning to Islamabad to respect the agreed truce.

Blasts were heard in Srinagar and Jammu and projectiles and flashes were seen in the night sky over Jammu, similar to the events of the previous evening, according to authorities, residents and Reuters witnesses.

The sudden announcement of a U.S.-brokered ceasefire followed four days of steady escalation between India and Pakistan and mixed signals from Washington.