Federal officials have signed a deal to add 400 beds to a Lancaster detention center for immigrants, making it the largest facility of its kind in California, authorities said Thursday. The Mira Loma Detention Center will be expanded to hold 1,400 people. The facility is run by the Los Angeles County Sheriff’s Department. A change to the existing contract to add beds was signed in November and approved this month by the county Board of Supervisors. “We still don’t know definitively” when the expansion will take place, said Virginia Kice, a spokeswoman for Immigration and Customs Enforcement. AD Quality Auto 360p 720p 1080p Top articles1/5READ MORECoach Doc Rivers a “fan” from way back of Jazz’s Jordan ClarksonThe space is needed because more immigrants are being detained for immigration violations in the Los Angeles area, and because the detention center in San Pedro, which housed more than 400 immigrants, was closed in October for repairs. The detainees there were moved elsewhere. The Los Angeles area also has seen a crackdown on illegal immigrants who have committed crimes.. However, civil-rights groups note that despite the extra beds, the Mira Loma facility still will not handle detainees with violent-crime convictions or those with serious health problems such as AIDS. They are being shipped to facilities in other states. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!