An investigation is underway to try and figure out what caused a UPS delivery truck to catch fire.

Crews responded to reports of a fire at the UPS Store in the 2200 block of West 50th St.  around 5:15 Thursday morning.

At the scene they found a delivery truck on fire.

Responders were able to put the fire out quickly, without the flames spreading to any other vehicles.

Store employees briefly evacuated the building.

No injuries were reported.