BETHEL ISLAND -- Fire crews and paramedics are responding to the Sugar Barge Resort & Marina for a boating accident that has injured at least one person.

According to a Contra Costa Fire Protection District dispatcher, crews were called out around 1:33 p.m. The extent of injuries is unknown.

It is also unclear what caused the boats to crash.

Check back for updates.

Contact Katie Nelson at 925-945-4782 or follow her at Twitter.com/katienelson210.