Four members of the terrorist Jundollah group were killed by Iranian security forces in the country\'s Southeastern Sistan and Balouchestan province. The four terrorists were shot dead in a surprise operation carried out by Iranian law enforcement officers, an informed source said on Tuesday. A local provincial law enforcement officer also lost his life during the gun battle that took place after the operation got underway. The police operation followed a series of intelligence gathering and detective work by local and national investigative task forces. The Jundollah group has claimed responsibility for numerous terrorist attacks in Iran. The group has carried out mass murder, armed robbery, kidnapping, acts of sabotage and bombings. They have targeted civilians and government officials as well as all ranks of Iran\'s military. In one of the worst cases, the terrorist group killed 22 citizens and abducted 7 more in the Tasouki region on a road linking the southeastern city of Zahedan to another provincial town. In 2007, Jundollah kidnapped 30 people in the Sistan and Balouchestan province and took them to the neighboring Pakistan. Jundollah claimed responsibility the same year for an attack on an Islamic Revolution Guards Corps (IRGC) bus in which 11 IRGC personnel were killed. In another crime in October 2009, the Pakistan-based terrorist Jundollah group claimed responsibility for a deadly attack in the Sistan and Balouchestan province which killed 42 people among them a group of senior military commanders, including Lieutenant Commander of the IRGC Ground Force Brigadier General Nourali Shoushtari.