Update 5:47 p.m.: Crews are working to clean up a train derailment Friday afternoon south of Elk Grove.
The freight train was headed north on Union Pacific tracks alongside Highway 99.
Union Pacific says nobody was injured and 22 freight cars derailed. Some of those ended up in the Cosumnes River.
Spokesman Justin Jacobs said there are no hazardous materials in the cars, but logs will have to be checked to determine the exact contents. He says work is still underway at the site.
"The cause of the derailment is currently under investigation," says Jacobs. "And we have crews out on scene right now assessing the track damage and kind of taking things from there."
The train was headed northbound out of Tracy on its way to Roseville when the derailment happened.
Traffic is heavily backed up along Highway 99.
Original: (AP) - A freight train derailed in suburban Sacramento, sending more than a dozen train cars into the mucky and swollen Cosumnes River.
KCRA reports Friday that the derailment happened at roughly 1 p.m. in the city of Elk Grove.
There were three people onboard the train, but no one was injured.
It is unclear what the train was carrying. Hazardous materials crews were called to the scene as a precaution. There was a red substance seen leaking out of one of the train cars, the station reports.
Near the train derailment, there was a levee break, but it is unclear if that was what caused the train derailment.
Traffic is backing up on Highway 99 because drivers are looking at the scene. People are asked to avoid the area.