ISLAMABAD, July 6 (Xinhua) -- Pakistani Police's Counter Terrorism Department killed five terrorists during an operation in the country's southwest city of Quetta, police sources said on Tuesday.

The operation was conducted at a terrorists' hideout on a tip-off late Monday in the Hazarganji area of Quetta, the provincial capital of Balochistan province, sources from the department told Xinhua.

Police cordoned off the hideout and asked the militants to surrender, but they opened fire at the police officials who retaliated, resulting in the death of five terrorists, the sources said.

A huge cache of arms and explosive material were recovered from their compound, said the police, adding that the killed terrorists were planning to target sensitive installations in the province.