The Palestinian detainee, who is on hunger strike, was transferred to intensive care unit because his health condition deteriorated, said Israeli authorities.
The Palestinian Prisoners Society (PPS) said Miqdad al-Qawasmeh, who is at the Israeli Kapalan medical center, was moved to the intensive care unit following an abrupt deterioration of his health.
Al-Qawasmeh is on a 90-day hunger strike to protest his imprisonment under Israeli administrative detention with no charge or trial.
He has spent about 4 years in Israeli jails at different times.
The administrative detention policy allows authorities to extend the detention of a prisoner without charge or trial.
There are around 4,850 Palestinian detainees in Israeli prisons, including 520 administrative detainees, according to institutions concerned with prisoners’ affairs.