CHULA VISTA–A two-vehicle head-on collision Wednesday injured five people in Chula Vista, authorities said.

Five people were injured Wednesday in a head-on crash between two vehicles that struck two other vehicles in Chula Vista’s Otay Ranch area, authorities said.

The incident occurred at about 5:30 p.m. on Palomar Street and Santa Olivia Road in Otay Ranch.

Firefighters were able to remove two of the passengers from their vehicle. They were taken to local hospitals. The other two passengers declined to be treated.

The incident is under investigation.