Bomb in southeast Iran kills policeman, three others - Iran media
The predominantly Sunni Muslim province has been a hotbed of rebellion by Sunni Islamist militants against Iran's Shi'ite authorities. Many of Iran's Sunnis complain of discrimination, a charge denied by the state.
"A policeman was killed and several others were wounded after a booby trap bomb exploded in the town of Nikshahr," Tasnim quoted provincial police chief Hossein Rahimi as saying.
Iranian media later reported that three civilians also died in the blast.
Rahimi said police were investigating the blast to determine who was responsible.
(Writing by Parisa Hafezi; Editing by Raissa Kasolowsky/Hugh Lawson)