A leading member of Palestinian Islamic Jihad group has continued an open-ended hunger strike, for the sixth day in a row, to protest Israel's extension of his administrative detention for four additional months, according to Journal of Turkish Weekly.

"I received a message from my husband through his lawyer informing me that he is beginning an indefinite hunger strike to protest the extension of his administrative detention in Hadarim prison," the wife of Khader Adnan told reporters.

Adnan was arrested nearly ten months ago near an Israeli military checkpoint in the West Bank city of Jenin.

Israel's policy of "administrative detention" allows it to hold Palestinian prisoners indefinitely without trial or charge.

Administrative detention orders can range from one to six months in length and can be extended by Israeli military courts by up to five years.

Adnan's wife called on international rights organizations to "act in order to put an end the systematic, unjust administrative detention of her husband and other Palestinian prisoners."