The Belgian military said that two of the soldiers were more seriously injured, but were in a stable condition.

"They have already been able to speak with their families. One of them will be operated on in Scotland and then repatriated to Belgium," a statement said.

"The third soldier was slightly injured and is now back at camp."

A further dozen soldiers suffered hearing damage in the incident, the defence ministry said.

"An investigation has been launched to find out the exact circumstances," it said.

The soldiers were from Belgium's 3rd parachute battalion and were taking part in the Red Condor exercise supported by Britain's defence ministry.