The Israeli Occupation Authorities (IOA) extended Sunday the administrative detention of Sheikh Hassan Youssef, a Hamas-affiliated member of Palestine’s parliament.

According to Hamas’s parliamentary bloc, Sheikh Youssef’s administrative detention was extended for three months for the fifth consecutive time only one day before his scheduled release.

MP Sheikh Youssef, 62, was arrested on Oct. 20, 2015 after Israeli occupation forces (IOF) stormed his house west of Ramallah.

Sheikh Yousef, who has spent 21 years in Israeli jails and was elected to the Palestinian Legislative Council in 2006 while in Israeli custody, has worked entirely in the political wing of the Hamas Movement.

Meanwhile, the MP Ibrahim Dabour was sentenced to six months in administrative detention.

MP Dabour was arrested at an Israeli military checkpoint west of Jenin on March 22.

Over the past month, the IOF arrested three Palestinian MPs, bringing the total number of detained MPs in Israeli jails to 12.

Under administrative detention, a procedure dating back to the British mandate of Palestine from 1920 to 1948, Israel can hold prisoners for indefinitely renewable six-month periods without charge.