A man was being held on suspicion of attempted murder after an early morning rampage at Union Station in downtown Los Angeles, in which two LAPD cars were damaged, an MTA vehicle was stolen and crashed, and a security guard was struck in the head.

The man in his 30s was seen smashing the windows of the patrol cars parked at Union Station around 4:30 a.m. Wednesday, according to the LAPD.

Some property was stolen from inside the cars. The man then smashed the window of a private car parked nearby and stole a bladed weapon from inside the car.

A security guard employed by the LA County transit agency Metro tried to stop the man and unsuccessfully used pepper spray, after which the man stole an MTA vehicle and sped out of the parking lot, only to crash the MTA vehicle on nearby Vignes Street.

The man then returned to Union Station on foot, this time on the Patsaouras Transit Plaza side near Metro headquarters, where he struck a security guard in the head, police said.

The man was arrested moments later near the Amtrak train tracks by LAPD officers. The man was being held on suspicion of attempted murder and officers were attempting to confirm his identity, authorities said.

The security guard was taken to a hospital for treatment but the LAPD could not give the guard's condition or a description of the injuries.