Two people were burned Friday in a natural gas explosion at Diamond Stadium in Lake Elsinore.
The blast occurred about 4:20 p.m. within the stadium building at 500 Diamond Drive, according to the Riverside County Fire Department.
The agency said multiple engine crews and other units were sent to the location and found the two victims suffering from moderate burns to different parts of their bodies.
Firefighters initially requested an airship to transport the patients but decided it would be faster to send them by ambulance to nearby Inland Valley Medical Center in Wildomar for treatment.
It was unclear whether they were employees or visitors to the venue, where no baseball games were in progress Friday. According to the stadium website, a concert is scheduled there on June 10.
Crews were investigating the cause of the explosion, which did not ignite a fire. SoCal Gas Co. technicians were also summoned to assist.
There was no immediate word on whether the blast was a result of faulty equipment or a ruptured gas line.