JERUSALEM: Israel on Thursday released a prominent Hamas leader in the West Bank, the group said, a year after his arrest along with hundreds of others following the killing of three Israeli teenagers.

Hamas says Hassan Yusef, who has spent years in Israeli jails and was elected to the Palestinian Parliament in 2006 while in Israeli custody, has worked entirely in the political wing of the movement.

He is also known for having disowned his son after he worked as an informant for Israel’s Shin Bet internal security agency under the codename “The Green Prince.”

“Occupation forces (Israel) on Thursday released Hassan Yusef after he was in administrative detention for an entire year,” Hamas said in a news report on its website, Hamas.ps.

The army arrested Yusef, born in 1954, in June 2014 as part of a round-up of members of the group in the occupied West Bank, Hamas said.