It's understood that 22-year-old Jason Glasgow of the Royal Highland Fusiliers, who came from Motherwell, was on foot when the accident happened.

Four other members of the regiment suffered minor injuries.

The collision happened at Walcz.

An army spokeswoman said: "We understand that one Warrior carrier reversed when another one was behind it."

"The soldier was caught between them. He had not been riding on a Warrior himself, but we don't know the exact circumstances yet."

He was pronounced dead shortly afterwards in a Polish hospital, at 6.30pm local time.