One victim rescued from water, search underway for 2nd near Deer Valley Rd. Antioch

Water rescue underway in Antioch. (Contra Costa County Fire Protection District)

First responders have rescued someone from the water and have concluded their search for a second victim Friday afternoon in Antioch

Contra Costa County Fire Protection District first tweeted about the incident at Deer Valley Road and Carpinteria just after 3 p.m. 

One victim was treated at the scene and released at the scene. Officials used a rescue boat and sheriff's office helicopter to search for a second victim. The search has extended to the west.  

The rescue operation concluded at around 4:30 p.m. Fire officials said in a tweet: "No second victim has been located."

Additional assistance in the search and rescue was provided by Antioch Police Department, and Contra Costa County Sheriff's Department.