A bomb planted in a flower pot alongside a major road in Colombo exploded early Monday, injuring at least three people, authorities said. Witnesses said a dead body lay in the street. The blast completely destroyed one in a line of large concrete planters decorating the road divider about 7 a.m. in Wellawatta in southern Colombo, according to Brig. Udaya Nanayakkara, Sri Lanka's military spokesman. One dead body could be seen on the street following the blast, witnesses said. At least three people were injured, Nanayakkara said. Sri Lanka is embroiled in a quarter-century civil war with ethnic Tamil rebels that has killed at least 70,000 people. The Tamil Tiger rebels have been accused of scores of bombings throughout the country.