About 25 gallons of oil spilled on Interstate 10 near Beaumont Tuesday in a collision involving two semi trucks and a mail truck.
The Riverside County Fire Department received a report of the crash at 1:10 p.m. on the westbound I-10 near Beaumont Avenue.
Fire crews arrived on the scene to find that no one was injured, but about 25 gallons of oil had spilled.
Crews were able to mitigate the spill, but the westbound Beaumont Avenue off-ramp on Interstate 10 remained closed for the cleanup.
The cause of the crash was under investigation.