A Monterey Park Fire Department engine truck crashed into a building at the intersection of Emerson and Garfield avenues shortly after 3 p.m.
Monterey Park Police said an Alhambra Fire Dept. truck collided with a Monterey Park fire engine, sending the fire engine into the Lu Dumpling House restaurant on the southeast corner. Both trucks were responding to a house fire.
Monterey Park Fire and CHP authorities said there were 14 patients in total. Firefighters, pedestrians and restaurant patrons were among the injured. Some patients were transported to Garfield Medical Center.
A Los Angeles County USC Medical Center spokeswoman said nine patients were admitted at the hospital: five firefighters and four civilians. One of the civilians was in critical condition. The other injuries were listed as minor to moderate.
There were no fatalities.
Multiple fire department vehicles, paramedics and police units were on scene to treat the injured and begin an investigation. A command post was sent up on Emerson just west of Garfield. The trucks were expected to remain at the scene for several hours during the investigation.
It was earlier reported that six people were transported to L.A. County USC Medical Center in critical condition.