Police are on high alert Wednesday after receiving an ISIS-related threat indicating someone was going to shoot an officer, according to reports.

The NYPD was contacted by police out of Philadelphia after they received an anonymous tip that someone was looking to shoot a cop in either city, CBS reported. The Philadelphia police investigated the call and found that it had come from an address in Manhattan.

RELATED: Bomb threats target over 30 schools in Northeast, Midwest

An anonymous call was then made to an NYPD detective squad stating that a local man — who may have pledged allegiance to ISIS — may be armed and threatening to shoot a cop, according to NBC.

Police reportedly know the individual they are looking for and added that he has a criminal record, CBS said. Authorities also want to make sure the pubic knows the alert is to police officers not the public at large.

RELATED: Police report of anonymous 'radical' Islam tip leaked

This threat comes weeks after a Philadelphia police officer was shot and seriously wonded after being ambushed by a gunman who claimed to have pledged allegiance to Islamic State militants.

The suspect, later identified as 30-year-old Edward Archer, confessed to committing the act “in the name of Islam,” according to authorities.