Heavy cross-border shelling in the disputed Kashmir region killed at least three Pakistani soldiers and seven Indian troops on Wednesday, Pakistan’s military said, in a sharp escalation of violence after a deadly ambush of three Indian soldiers. At least 10 civilians also were killed, witnesses said.

Pakistan’s military announced the death toll of both Pakistani and Indian forces. There was no word from India on the casualty count. A senior official with India’s paramilitary border forces said at least two personnel were injured.

The clashes were the latest in recent weeks along the heavily militarized border that divides Kashmir between Pakistan and India, and it raised the specter of more unrest between the two nuclear-armed rivals.

Later Wednesday, the directors general of the two militaries held talks, but it was unclear whether it could help ease tensions.