The ceasefire deal between India and Pakistan is at risk of completely collapsing after a series of explosions were heard just hours after the agreement was announced. There have been reports of heavy artillery shelling and several drone incursions in may parts of Indian Kashmir. Blasts were been heard in Srinagar and Jammu, while air defence units have reportedly been activated in the former after artillery was reported. Residents say the loud explosions were followed by a blackout.

Omar Abdullah, the region’s rop official, said in a post on social media: “What the hell just happened to the ceasefire? Explosions heard across Srinagar!!!” In another post, he added: “This is no ceasefire. The air defence units in the middle of Srinagar just opened up.” The Associated Press reports that cross-border shelling and gunfire have been reported from at least five places along the Line of Control, which is the de facto frontier that divides disputed Kashmir between the two countries.

It is thought that there were no casualties.

Videos posted online show what appear to be projectiles in the night sky, and one post purports to show a "destroyed" Pakistan airbase.

It comes after US President Donald Trump posted on his Truth Social platform earlier today that India and Pakistan had agreed to a full and immediate ceasefire.

He said: “Congratulations to both Countries on using Common Sense and Great Intelligence. Thank you for your attention to this matter!”

Indian foreign secretary Vikram Misri said: “It was agreed between them that both sides would stop all firing and military action on land, and in the air and sea.

“Instructions have been given on both sides to give effect to this understanding.”

Pakistani foreign minister Ishaq Dar also announced the truce, adding that Saudi Arabia and Turkey played an important role in facilitating it.

It comes after weeks of clashes, including missile and drone strikes, resulting in the deaths of dozens of civilians.

The violence was triggered by the massacre of tourists by gunmen last month in Kashmir.

India blamed the killings on Pakistan, which claims it is not responsible.