Swastikas were found scrawled on a Manhattan firehouse and several ambulances Friday morning — just days after the suspected vandal graffitied the hateful symbol at the same locations, police said.

FDNY firefighters and medics found four ambulances outside 501 W. 172nd St. in Washington Heights with swastikas on them Friday, police said.

Additionally, a doorway at an FDNY station house at 515 W. 181st St. had the Nazi symbol on it, cops said. The vandal also scrawled the words “Nazi rapist pigs” and “pedophiles” on the doorway, officials said.

The NYPD’s hate-crime task force is investigating the graffiti, police said. The same vandal is suspected in both instances, cops said.

The scrawls come days after “Nazi pigs die” and “Nazi pigs” were written on the station house and swastikas were scrawled on four other ambulances.