The New York Police Department is investigating after an unidentified individual allegedly shoved two men onto the “F” train tracks at the Lexington Avenue–63rd Street station on Sunday morning, leaving both victims injured but alive.

Police said the incident occurred at approximately 11:41 a.m. when the suspect pushed an 83-year-old man and a 31-year-old man onto the southbound subway tracks. Bystanders quickly pulled the men back onto the platform before a train arrived. Both victims were transported to a local hospital with non-life-threatening injuries.

The suspect fled the scene in an unknown direction and was last seen wearing a gray jacket, red hat, tan pants, and green shoes. No arrests had been made as of Sunday evening.

Authorities emphasized that while New York City is on heightened alert following separate incidents over the weekend, including two bombs thrown into a crowd of protesters by suspect Emir Balat and an alleged accomplice, Ibrahim Nikk, there is no confirmed connection between those attacks and the subway incident.

The FBI’s Terrorism Task Force is assisting the NYPD and the U.S. Attorney’s Office for the Southern District of New York with the investigation. Police are urging anyone with information about the suspect or the attack to come forward.

Authorities described the attack as “random” and stressed the importance of public vigilance on the city’s subway system while the search continues.