The Robstown Fire Department is investigating an early morning fire at a construction trailer that broke out at 6 a.m. Monday on the 1800 block of Bosquez.

A nearby resident called 911 after noticing the fire, and fire crews quickly arrived on the scene, where they found the building engulfed in flames. It took crews just a few minutes to put out the flames, but the building was severely damaged, and a structure next door received some heat damage as well.

"The adjacent building suffered minor damages," Robstown Fire Chief Ricardo Gonzalez said. "Some windows were shattered because of the heat. Some of the paint was scorched, but nothing major."

No one was injured in the fire, and investigators are still trying to determine what sparked it.