A number of garages in Birzebbuga were damaged this morning in a blaze which started from a garage where two men were working, the police said.
The incident happened in Dun Gorg Zammit street.
A number of cars which were in the garages, and electricity cables were damaged.
The blaze was extinguished by the fire brigade.
One of the men, a 64-year-old from Birzebbuga, is being treated at Mater Dei Hospital for an injury to one of his legs.
Magistrate Doreen Clarke is holding an inquiry.