Israeli security forces deployed at the site of a reported attack in a settler neighborhood of Israeli-annexed east Jerusalem, on January 27, 2023. AFP
"The police arrested 42 suspects for questioning, some of them from the terrorist's family," as well as residents from his neighbourhood in Israeli-annexed east Jerusalem, a police statement said.
Police identified the gunman as a 21-year-old resident of east Jerusalem, the sector of the city annexed by Israel after the 1967 Six-Day War.
There has been no indication that he had prior involvement in a militant activity or was a member of an established Palestinian armed group.
He was killed by police following a brief chase after the shooting.
Others detained included residents of the gunman's neighbourhood, police said.
In a separate statement, police said the force had been placed on the "highest level" of alert following the attack in Neve Yaakov neighbourhood of east Jerusalem.
Israel's police chief Kobi Shabtai called the shooting "one of the worst attacks (Israel) has encountered in recent years."