NEW DELHI — In one of the deadliest attacks in the disputed region of Kashmir, heavily armed militants stormed an Indian Army base near the border with Pakistan early Sunday, killing 17 soldiers.

India’s home minister, Rajnath Singh, in a series of pointed comments on Twitter, appeared to accuse Pakistan of being behind the attack.

“I am deeply disappointed with Pakistan’s continued and direct support to terrorism and terrorist groups,” he said.

India’s director general of military operations, Lt. Gen. Ranbir Singh, said in a televised statement that the militants were “foreign terrorists” carrying items with “Pakistani markings.” He said he had contacted his counterpart in the Pakistani Army to express “our serious concerns.”