FRANKLIN, Texas — One person was killed when a boiler exploded at a southeastern Texas power plant Wednesday morning, according to a spokesperson for Dallas-based electric utility, Luminant, which owns the plant.

“A contractor was fatally injured” in the blast at the Oak Grove Power Plant at about 8 a.m., according to a statement from spokesperson Meranda Cohn.

“All other employees and contractors have been accounted for and there are no other known injuries at this time,” Cohn said.

Bill Huggins, the director of Robertson County Emergency Management, says there was no fire and no danger to the residents of the nearby town of Franklin, about 110 miles (177 kilometers) northwest of Houston.

The cause of the explosion remains under investigation, according to Cohn’s statement, and the plant is still in operation and generating electricity.

Luminant will continue to work closely with the contractor’s employer and state and federal regulators to investigate the cause of this event.