About 150 people are on the fourth day of a hunger strike at an immigration detention centre in the US state of Washington, officials told bbc .
Supporters say the detainees are protesting over their treatment at the facility as well as calling for an end to deportations.
The Northwest Detention Center in Tacoma holds about 1,300 people being investigated for possible deportation.
At one point, activists say, 750 people refused to eat as part of the strike.
US immigration officials have said any detainee who refuses food for 72 hours will be referred for medical evaluation and possible treatment.
The facility is privately owned and operated by the GEO Group, a government contractor.