Updated — Tuesday, Dec. 9 at 10:36 a.m.:
A New York Police Department officer shot and killed a knife-wielding 49-year-old man who stabbed a 22-year-old man inside a prominent Brooklyn synagogue on Tuesday morning, officials said.
The incident took place at the Lubavitch World Headquarters in the Crown Heights neighborhood, police said.
The attacker entered the synagogue and stabbed Levi Rosenblat, a spokesman told the Associated Press. Rosenblat and others were inside studying at the time.
Witnesses told the AP that the attacker repeatedly said "kill the Jews."
Police were called to the synagogue at 1:41 a.m. on Tuesday where they encountered Calvin Peters, who lives in Valley Stream in Nassau County, the NYPD said.
Police can be heard and seen on the video yelling at the man to drop his knife. The man did, but shortly after picked it back up and lunged at an officer, police said. The officer shot him once in the chest, and the man died at the hospital.
The 22-year-old was stabbed in the left temple and is in stable condition at the hospital.
"I went over to the floor, I saw the teenager on the floor, his hair was blood. He was saying 'save me,' " a witness told the Daily News.
Police said they found a 9-inch knife, with a 4.5-inch blade, at the scene.
New York State Assembly member Dov Hikind said the attacker cased the synagogue before the attack.
"I'm told that the attacker came earlier that evening, too—he was stalking the scene. Thank G-d he didn't inflict more harm nor do more damage to more people," Hikind said.
Crown Heights: U/D daven for Levi ben Reizel, patient that was stabbed in front of 770.
U/D Patient is a 22 year old man, transported in stable condition. #CHStabbing
The New York State Assembly member who represents the district where the attack occurred is Karim Camara. An earlier version of this article incorrectly said Dov Hikind represented the district.