San Leandro crash leaves dirt bike driver dead

San Leandro police are investigating a crash involving a van and dirt bike. 

Police say they arrived on the scene near Washington Ave. and Castro St. shortly after 4:00 p.m. on Saturday. Investigators say they found a 25-year-old male with significant injuries and transported him to a nearby hospital where he later died. 

Officials say they determined the man as not wearing a helmet when he crashed into a van. 

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Police did not say if alcohol was a factor in the crash.

"The San Leandro Police Department offers our condolences to the family of the decedent," said Lieutenant Matthew Barajas. "This is a staunch reminder for everyone to watch out for one another while on the road."