Migrant intake center opened in Long Beach Convention Center places 67 children in isolation after 47 of them test positive for COVID-19
The intake center opened just over a week ago and has the capacity to hold about 1,000 children
It was already housing 710 migrant children as of Wednesday
Officials said that siblings among the 67 children placed in isolation are being kept together
The agency also operates another facility at the Pomona Fairplex, about 30 miles from the Convention Center, where another 14 children have tested positive
There were 216 children housed at the Pomona Fairplex site as of Wednesday - just days after it started welcoming migrant children on Saturday