REDLANDS (CBSLA.com) — Authorities say a 17-year-old Redlands boy has been arrested for allegedly vandalizing a fire engine headed to a medical emergency.

The incident on Olive Avenue near Cajon Street occurred about 1 a.m. Saturday.

According to a statement released by Redlands police, the teen approached the fire truck which had its emergency lights on.

The statement said that the engineer reduced the truck’s speed.

That’s when authorities say the teen jumped on the front bumper and began banging his head and fists against the windshield.

The engine’s crew treated the boy at the scene. He was suspected of being under the influence of a controlled substance.

“Engineer Ley’s actions no doubt saved the life of the individual who was determined to have an encounter with the engine, as well as ensuring the safety of the crew,” Battalion Chief Jim Topoleski said in the statement.

The teen was arrested on suspicion of vandalism and interfering with emergency personnel.

He was subsequently transported to an area hospital for medical treatment but has since been released to his parents.