Health officials in Los Angeles County are investigating a measles outbreak.
The Los Angeles County Department of Public Health said Monday it's looking into at least five confirmed cases of the illness.
Officials say those cases are the first transmissions confirmed in the county this year. Additional exposures may have taken place this month at Los Angeles International Airport, UCLA, California State University and several restaurants.
It's unclear how old the infected individuals were, but officials say the majority of them weren't vaccinated.
This newest outbreak comes as the number of measles cases in the U.S. continues to grow.
Additional reporting from Newsy affiliate CNN.