![man's mug shot](https://media.nbclosangeles.com/2019/09/foster-west-covina-2020.jpg?quality=85&strip=all&resize=320%2C180)
Authorities are seeking possible additional sexual assault victims of a 68-year-old West Covina man who has been a foster parent for the last 18 years.
On March 3, David Diaz allegedly sexually assaulted his foster child, a 10-year-old girl, at his residence in West Covina, according to the West Covina Police Department.
Diaz was arrested and charged with sexual assault by force and sexual perversion with a child under 14, police said.
Authorities believe there may be other victims, and they encouraged anyone with information to call the West Covina Police Department tip line at 626-939-8668.
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