The driver of a big rig was arrested on suspicion of DUI after fatally colliding head-on with a motorist in Ontario early Thursday, then fleeing the scene, driving onto the 60 Freeway and abandoning his truck there, police said.

Hilario Homberto Urena, 40, of Bay Area suburb of Tracy, allegedly drifted across the yellow line on Haven Avenue and struck an oncoming driver in a sedan. The driver of the car died of his injuries, according to police.
The collision occurred shortly after 1 a.m., according to a news release from the Ontario Police Department.
A truck bumper was left at the scene of the crash, according to the California Highway Patrol’s incident log.
Immediately after the collision, Urena allegedly fled, driving the big rig onto the eastbound 60 Freeway on-ramp, where his truck collided with a wall between the ramp and the freeway.
The big rig came to rest in the No. 4 lane of the freeway, where Urena abandoned it, according to police. He was taken into custody by police as he walked on the Freeway near the Milliken Avenue on-ramp, which is about 1 mile east of where the truck was abandoned.
While the truck was abandoned on the freeway, another motorist hit the big rig. That crash was described by police only as a “minor damage collision” that was handled by CHP.
At the time of his arrest, Urena showed signs that “alcohol may have contributed to the incident,” the police news release said.
He was booked at the West Valley Detention Center in Rancho Cucamonga on suspicion of vehicular manslaughter while intoxicated, felony DUI while operating a commercial vehicle and felony hit and run.
Anyone with information was asked to contact traffic investigator, Officer Roger Argomaniz, at 909-395-2001, Ext. 4737.