The agency has not specified the number of killed servicemen.
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However, according to Fars news agency, one person was killed, and five were injured in the incident. The terrorists attacked the IRGC headquarters in the city of Nik Shahr in the province of Sistan and Baluchestan, it added.
The Islamic Revolutionary Guards Corps, created in April 1979 from militias of Islamic Revolutionary Committees, supporters of Iranian Shiite leader Ayatollah Khomeini, are under command of Iran's Supreme Leader. The IRGC consists of the main command, joint headquarters, ground, air force and navy. It includes Quds special forces and Basij, the forces of the national militia.