At least four suspected suicide bombers blew themselves up during a raid conducted by security forces in Balochistan's Loralai area on Tuesday.

The Counter-Terrorism Department and other security agencies conducted the raid in Nasirabad, Loralai, on the basis of intelligence reports, Assistant Superintendent of Police, Attau Rehman said.

Take a look: 119 killed in terror incidents in Balochistan last year: IG

At least four security personnel were injured during the raid and taken to Loralai hospital, he added.

According to the Inter-Services Public Relations, the suspected terrorists were responsible for recent terrorist activities in Balochistan and martyrdom of six Levis personnel on March 20 at Sanjwai, Ziarat.

The area surrounding the compound was sealed off as a combing operation went underway in the area following the raid.

An intelligence officer who declined to be named told DawnNewsTV that a mastermind of attacks on levies personnel was also among the suspects who blew themselves up.

A large cache of weapons, suicide jackets and heavy explosives, personal belongings including service cards and NICs of Levies personnel killed at Sanjawi were also recovered, ISPR said.

Balochistan Chief Minister Jam Kamal Alyani expressed satisfaction at the operation conducted in the area. He congratulated security forces for conducting the successful operation.

Loralai has witnessed a sharp rise in violent attacks by militants in the recent past.

A few days ago, six Levies personnel were martyred in a terrorist attack in Balochistan's Sanjavi. According to sources the six members of a law enforcement agency were posted at the check-post in Lal Katai on Sanjavi-Loralai road, which was attacked by assailants with heavy weapons.