A big-rig carrying more than $42,000 in Monster Energy drinks was stolen from a vacant lot in Corona and while police have recovered the semi tractor and its trailer, the drinks are nowhere to be found.

The truck was parked in a lot on Sherborn Street about 3 p.m. Monday and when the driver returned to the lot about 4 a.m. the next day, the truck was missing, said Corona Police Sgt. Paul Mercado.

The cab was located just after midnight in Jurupa Valley on Wednesday morning without its trailer, Mercado said. The trailer was found in Fontana about 12:40 a.m.

It’s not completely clear how that happened, Mercado said.

“We’re trying to figure out how they got rid of the trailer,” he said. “It’s safe to assume you’ve got to have something to pull the trailer.”

And, of course, the trailer is missing the Monster drinks, which were worth exactly $42,438.20, according to a Facebook post on the Corona Police Department’s page.

Officers don’t have any suspects yet, but Mercado said officers already went to the truck to collect DNA.

Whoever stole it could be facing at least three felonies, Mercado said, because the tractor and trailer count as two separate stolen vehicles. It’s a felony to steal anything worth $42,000 – including energy drinks.

Anyone with information about the theft may call Detective John Samano at 951-763-2282.