Investigators are questioning a Sugarhouse teen after a car and two pickup trucks were set on fire at about 2 a.m. Wednesday.

Firefighters were called to a fire in an AMC Pacer parked at 375 E. Hampton and to fires in two pickup trucks, one at 422 E. Edith and the other at 1094 S. Blair. Arson is suspected in all three fires, which were reported within 30 minutes of each other, said Salt Lake City fire investigator Steve Herrmann.Herrmann said gasoline may have been taken from the vehicles' fuel tanks and used inside the vehicles to start the fires. Police were asked to check the area and detained a male juvenile they found prowling in another vehicle, Herrmann said.