At least five people have been stabbed at a house close to a synagogue in New York state, police have said.
The house in Monsey, north of New York city, belonged to a rabbi, according to the Orthodox Jewish Public Affairs Council (JPAC).
The motive for the stabbing was not clear. The suspect fled but police said he was later taken into custody.
One of the victims was stabbed at least six times, JPAC said in a tweet.
CBS New York reported that a man brandishing a machete attacked a Hanukkah celebration at the rabbi’s property in Monsey – an area with a large population of ultra-Orthodox Jews. The incident happened at about 22:00 on Saturday (03:00 GMT).
“The house had many dozens of people in there,” Yossi Gestetner, a co-founder of OJPAC for the Hudson Valley region, told the New York Times.
The attacker fled the scene in a car and reports said witnesses had noted the number plate. Police said later they had located a matching vehicle and arrested a suspect.
The New York Police counter-terrorism unit said it was “closely monitoring” the reports.
Letitia James, the New York Attorney General, said she was “deeply disturbed” by the situation.
“There is zero tolerance for acts of hate of any kind and we will continue to monitor this horrific situation,” she said in a Twitter post.