NEW YORK (AP) — Three people were stabbed at a major New York City subway station Saturday morning by a man with a knife, according to authorities, who say that man was then shot by police on a station platform and later died.

The New York Police Department said officers responding to a 9:40 a.m. emergency call of an assault at the 42nd Street-Grand Central station encountered the man holding a weapon that a law enforcement official described as a machete. The official was not authorized to discuss the investigation publicly and spoke to The Associated Press on condition of anonymity.

Police shot the man, although it wasn’t immediately clear how many shots were fired or struck him. In a social media post, New York Mayor Zohran Mamdani said the man later died.

The three stabbing victims — an 84 year-old male, 65-year-old male and 70-year-old female — were all in stable condition at the hospital, the department said. Two officers were also being evaluated at a hospital.

Police were still investigating whether the stabbing started on the subway platform which services the 4,5 and 6 MTA trains or on one of the subways.

New York Gov. Kathy Hochul said on social media that she was “grateful to our brave officers who acted quickly to stop the suspect. We’re working closely with the NYPD as the investigation unfolds.”

The police department, posting on X, urged travelers to avoid the area Saturday morning due to a police investigation and to expect delays and heavy traffic. The Metropolitan Transit Authority said some subway trains were not stopping at the station which is separate from regional train service at Grand Central.

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Robertson reported from Raleigh, N.C. Associated Press writer Hannah Fingerhut in Des Moines, Iowa, contributed to this report.