BANGKOK, Nov. 6 (Xinhua) -- An army soldier was killed and seven others injured when an explosive went off aboard a barge in which they were riding in central Thailand on Tuesday.

The soldiers of the Army Engineer Department were riding in the boat laden with explosives during a demonstrative water transport mission at Burachat Fort in Ratchaburi province, about 100 km west of Bangkok, when the bomb on board suddenly went off, killing Sgt. Yutthaphong Chankhonkaen, and injuring seven others, said deputy army spokesperson Col. Sirichand Ngathong.

The injured soldiers were rushed to nearby hospitals.

The Army Engineer Department based in the province is yet to investigate the fatal accident inside the army camp, she said.