Source: World Wide Web
According to the Fox News Network, on the evening of the 21st local time, a shooting incident occurred in the Harlem District of New York City, and the source said that two policemen were shot and killed.

Screenshot of fox news report
The two officers were shot near 119 West 135th Street, according to a NYPD spokesman, and their specifics are not known at this time. But multiple police sources said the two officers were dead and the suspects may have committed suicide.
The scene of the shooting. Image source: US media
Local media said that there were already a large number of police officers at the scene of the shooting, and the road to the incident had been blocked.