Immigration and Customs Enforcement agents showed up at a hospital in Los Angeles on Saturday and blocked off the ambulance entrance.

KABC-TV, a Los Angeles TV station, reports that ICE showed up at about midnight at Adventist Health White Memorial Medical Center with a person in custody who needed medical treatment in the emergency room. A hospital spokesperson said federal agents blocked the entrance to the ER for two hours.

Protesters soon showed up to object to the presence of ICE agents at the hospital, and one of the demonstrators, a teenage girl, was reportedly pepper sprayed by agents and needed medical attention.