A police spokeswoman in Zagan, Anna Kublik-Rosciszewska, said the crash took place Sunday afternoon near Trzebien, on the A18 road as the troops were traveling in the direction of Wroclaw on a routine mission.
She said Monday that six of the troops were hospitalized and that two of them were in serious condition. The seventh was treated on the spot.
The troops are with the 21st Theater Sustainment Command, or TSC, based in Karliki, in Zagan region.
Four of those hospitalized were later released and were recovering, while the two seriously injured troops remained hospitalized in stable condition, TSC Public Affairs Officer Maj. Selwyn Johnson said.
U.S. troops are based throughout NATO member Poland as part of a strategy to shore up the country’s defense capacity at a time of heightened Russian military activity.