Police in New York City on Friday were hunting for a woman in her 20s suspected of pushing a man to his death under an oncoming subway train, the second such incident in less than a month.

The incident happened Thursday evening at about 8:00 pm (0100 GMT Friday) at a station on the number 7 line in the Queens borough, police said, according to AFP.

The suspect — who was speaking to herself as she paced along the platform, according to witnesses — pushed the man as the train was pulling into the station. He apparently had his back to the woman and did not see her.

Police released surveillance camera video footage via Twitter showing a woman running from the scene. The victim was not immediately identified.

His death was eerily similar to that of a 58-year-old man killed on December 3 when he was pushed onto the tracks during a fight with a deranged man in a Manhattan subway station. The assailant has been charged with murder.

A New York Post front page picture of the man on the tracks a split-second before he was killed by the oncoming train provoked public fury as to why no one helped him — and why the tabloid newspaper published the photo.

Several million people use the New York City subway system every day, but incidents of this kind are extremely rare.

Before the December 3 death, the last time someone was pushed onto the rails and hit by a train was in 2010. That woman survived.