"Since this was such a major incident, with seven seriously injured people, seven ambulances would have been needed. That's quite a lot of resources," Fredrik Iwanson, external commander at Södra Älvsborg Rescue Services Association, tells the newspaper.
One of the teenagers is being treated for life-threatening injuries at the Burn Center in Linköping. The others have minor or serious injuries.
The teenagers struggled to get out of the burning garage. They eventually managed to force a door open with help from people outside, according to an emergency report cited by BT.