India and Pakistan agreed to a ceasefire on Saturday after U.S. pressure and diplomacy, announcing a sudden stop to a conflict that had seemed to be spiraling alarmingly.

But within hours, violations were reported from the main cities of Indian Kashmir, the territory that had borne the brunt of four days of fighting.

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.

Military spokespeople in both countries did not immediately respond to requests for comment.