Black smoke and flames could be seen from a 1.5-acre brush fire that started in an industrial area in the 2300 block of Faivre Street.
The fire started in a homeless encampment around 12:34 p.m. Wednesday. Chula Vista Fire Department initially responded to the fire.
"As we were trying to contain that fire, some of the embers caused an additional spot fire due to the wind that we have today a little bit east and south of where that initial fire was. And that fire actually grew to a little bit larger size," Chula Vista Batallion Chief Chris Monroe, said.
He said with the help of San Diego Fire-Rescue and helicopter retardent drops they were able to stop the forward rate of spread and control the fire.
No structures were threatened.
Crews were initially called out for a structure fire, but once they were on scene they determined it was a fire in the riverbed.
No injuries were reported.
Check back on this breaking story for more information.