ISLAMABAD, Feb. 25 (Xinhua) -- Pakistan security forces killed at least one terrorist and arrested 11 others on Saturday in the country's southwest Balochistan Province, said a military statement.

The Inter Services Public Relations (ISPR), the media wing of the Pakistani army, said that the achievements were made during the intelligence-based operations by the Frontier Corps, a paramilitary force.

The operations were conducted in the provincial capital of Quetta, district Sibi and Khahan area of Balochistan.

The security forces recovered a huge cache of arms and ammunition, including rockets, submachine guns, mines, explosives, and live bullets.

In pictures released by the ISPR, the security personnel are seen confiscating weapons and ammunition hidden inside the caves of a mountain.

According to the statement, the activities are part of the major offensive operation "Radd ul Fasaad," or reject discord in English.

The operation Radd ul Fasaad was launched in February last year to eliminate the terrorists across the country, especially against the sleeping cells of the militants, their supporters and financiers.