The offensive occurred amid heightened tensions between the nuclear-armed neighbors in the aftermath of an attack on Hindu tourists in Indian Kashmir.

India attacked nine sites in Pakistan and Pakistani Kashmir on Wednesday with at least three deaths reported, and Pakistan said it was mounting a response as the worst fighting in years erupted between the longstanding enemies.

Indian forces have attacked Pakistan with missiles in three locations, Pakistan’s military spokesman is quoted by the country’s state TV as saying. There are also reports of intense shelling and loud explosions in border areas of the Pakistan-administered state of Kashmir, according to Reuters news agency.