Tribal rebels ambushed a Pakistan army convoy on Wednesday, killing one soldier and wounding five in the latest violence to hit the troubled southwestern province of Baluchistan, officials said. The rebels fired rockets at the four-vehicle convoy in Dadhar district, about 100 km (60 miles) southeast of the provincial capital Quetta, said the local government officials, who did not want to be identified. Attackers also blew up small pipelines feeding natural gas from two wells to a filtration plant, the second such attack in two days in Baluchistan's Dera Bugti district, they were quoted as saying by Reuters.