Among the three is Palestinian Alaa Rimawi, who has entered his fifth day of hunger strike. Rimawi has served a total of 11 years in prison on seperate occasions.
Musab al-Hour, 33, started his hunger strike on April 13 after Israeli authorities renewed his administrative detention order.
He has been in prison since 2019.
Imad Sawarkeh, 37, has completed more than a month on hunger strike. He has been striking since 18 March after an Israeli court renewed his administrative detention for an additional term in prison.
He was first detained in July 2020, and was promised release on 18 March.
All of the three prisoners are married and with children.
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Around 350 Palestinian prisoners are currently held in Israeli "administrative detention" without charge or trial, .
Under the administrative detention order, Israel detains Palestinians for six months at a time, which can be extended indefinitely.
Israel says the procedure allows authorities to hold suspects and prevent attacks while continuing to gather evidence, but critics and rights groups say the system is being abused.
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