Nov 24, 2014 1 min read

PITTSBURGH (AP) – Fire investigators have been trying to figure out what caused seven rental units at a Pittsburgh storage facility to burn.

Investigators consider Monday’s early morning blaze suspicious because there’s typically nothing that would cause such units to go up in flames, though crews were sifting through the rubble to make sure.

The fire was reported at the Stash and Store on the city’s South Side about 2:30 a.m. Nobody was hurt, but three other units suffered water damage, in addition to those whose contents burned.

The business rents units for business and personal storage.