ISLAMABAD >> India fired missiles into Pakistani-controlled territory in several locations early Wednesday, killing at least eight people including a child, Pakistani authorities said. India said it was striking infrastructure used by militants.

At least three civilians were also killed in shelling by Pakistani troops in Indian-controlled Kashmir, the Indian army said in a statement.

Tensions have soared between the nuclear-armed neighbors since last month’s massacre of tourists in the Indian-controlled portion of Kashmir. India has blamed Pakistan for backing the militant attack, which Islamabad has denied.

Pakistan’s Prime Minister Shehbaz Sharif condemned Wednesday’s airstrikes and said the “deceitful enemy has carried out cowardly attacks” and that his country would retaliate.

“Pakistan has every right to give a robust response to this act of war imposed by India, and a strong response is indeed being given,” Sharif said.

He said his country and its armed forces “know very well how to deal with the enemy.”

Sharif has convened a meeting of the National Security Committee for Wednesday morning.

The missiles struck locations in Pakistan-administered Kashmir and in the country’s eastern Punjab province. One hit a mosque in the city of Bahawalpur in Punjab, where a child was killed.