Israeli security forces arrested the leader of a Jewish extremist group on Monday following the death of 18-month-old Ali Saad Dawabsha, reports AFP.
The suspect, identified as Meir Ettinger, was arrested in Safed, Israel for "nationalist crimes."
Although no direct connection has been made between the firebomb that led to Dawabsha's death and Ettinger's arrest, the Shin Bet did tell AFP he was arrested "because of his activities in a Jewish extremist organisation."
According to AFP, Ettinger is a grandson of Meir Kahane, a rabbi who founded the racist anti-Palestinian movement Kach and was assassinated in 1990 in New York.
Media reports suggest Ettinger could face upwards of a year in "administrative detention", a measure usually applied to Palestinians which allows for detention without trial.