Protesters lobbed a grenade at a shop in eastern Sri Lanka, killing one person and wounding four others, the military said. A curfew was imposed following the attack in the town of Trincomalee, where police had already been put on alert after another grenade blast late Monday damaged a Buddhist statue and slightly injured one person. The town is 230 kilometers (140 miles) northeast of the capital, Colombo. The protesters had gathered to demand that the statue be removed from the market square in the heart of the town, said S. Bandara of the Trincomalee police. "Initial reports indicate that one person was killed and another four were injured" in Tuesday's explosion, said military spokesman Brig. Daya Ratnayake. He said no other details were immediately available, The Associated Press reported.