Militants disguised as cricketers ambushed a paramilitary camp in India’s volatile Kashmir region on Wednesday, killing five police officers and injuring at least seven more people, including civilians.

The two gunmen from pro-Pakistan Hizbul Mujahideen, which claimed responsibility for the attack, were shot dead in a gunfight with the paramilitary police at the Central Reserve Police Force base just outside the restive city of Srinagar, officials said. Two other militants who were not involved in the attack might still be at large.

Police said the gunmen approached the camp, which houses a barracks and a school, and mingled with children playing cricket in a nearby field, before taking out automatic weapons from a bag and throwing a grenade, reports AFP.

Four civilians and four CRPF soldiers were injured in the attack, the deadliest militant assault for nearly five years.

The Kashmir News Service, a Srinagar news agency, reported it had received a call from a Hizbul Mujahideen spokesman claiming responsibility for the “guerrilla attack” and warning that more would follow.

Tensions across the region mounted since Kashmiri separatist Afzal Guru was hanged last month over a deadly 2001 attack on the national parliament in New Delhi.