RAMALLAH (Ma'an) -- School students and civil servants will suspend work on Tuesday to take part in a public sit-in to support Palestinian prisoners on hunger strike, their union said.

The Union of Workers said public employees and students would stop work at 11 a.m. to allow participation in rallies centered on protest tents in cities across the West Bank.

On April 17, Palestinian prisoners day, over 1,000 prisoners joined a group of hunger-strikers protesting detention without charge. Around 2,000 are now taking part in the strike, prisoners rights groups estimate.

Administrative detainees Bilal Diab, 27, from Jenin, and Thaer Halahla, 33, from Hebron -- are in a precarious condition after 69 days without food, a doctor from Physicians for Human Rights-Israel warned last week.