The mayor of Newark, New Jersey, accused the facility of "withholding food" and "poor treatment" of detainees.

A small crowd of people gathered outside Delaney Hall in Newark, N.J. to demonstrate over allegations of poor conditions.

Four detainees have escaped from a federal immigration detention center in New Jersey, which has been the center of protests since its opening in May and where both a sitting congresswoman and Newark’s mayor have been arrested.