ANTIOCH, Calif. (AP) – An old riverboat has sunk in the Sacramento-San Joaquin River Delta.

The Coast Guard says the 87-foot Spirit of Sacramento took on water early Sunday and capsized overnight near Bethel Island in Contra Costa County.

READ MORE: Closed Portion Of Highway 50 In El Dorado County To Reopen Tuesday

Two people on board the paddle wheel tour boat jumped in a dinghy and made it safely to shore.

The Coast Guard says the vessel may have had as much as 600 gallons of diesel onboard.

READ MORE: Suspicious Package In Stockton Deemed Safe, Deputies Say

Authorities are working to stabilize the riverboat while responding to the oil pollution.


MORE NEWS: 'Likely' Power Shutoffs To Impact Multiple NorCal Counties Amid Red Flag Warning

Copyright 2016 The Associated Press.