All four U.S. soldiers who had been at the center of a recovery mission in Lithuania for a week after their armored vehicle sank in a peat bog near the border with Belarus have been found dead, the Army said.

The soldier and three others had gone on a training mission in a 70-ton vehicle that sank in a bog near the border with Belarus.

Four US soldiers and a vehicle went missing in eastern Lithuania, where authorities have been carrying out a search-and-rescue operation since Tuesday.