Israel's prison service says an extremist Jewish settler has been freed from jail after a 10-month detention.

Meir Ettinger was arrested last year following a deadly arson attack on a Palestinian West Bank home that killed three people, including a toddler.

Ettinger was released on Wednesday. He has not been charged with any crime. Another man and a minor were indicted for the arson.

The 24-year-old Ettinger is the grandson of U.S.-born Rabbi Meir Kahane, Israel's most notorious Jewish extremist, whose ultranationalist party was banned from Israel's parliament for its racist views in 1988. He was killed by an Arab gunman in New York in 1990.

Ettinger has been accused of heading an extremist movement seeking to bring about religious "redemption" through attacks on Christian sites and Palestinian property.