In a disturbing attack, police said a 7-year-old boy was assaulted by a stranger in Queens, while right in front of his mom. It happened on the subway as the mother and son were waiting for the F train. Police were looking to track down the suspect.NBC New York’s Marc Santia reports.
Authorities are looking for a person who attacked a 7-year-old boy in front of his mother inside a Queens subway station last month, then threatened both of them a knife before running off.
According to the NYPD, the boy and his 37-year-old mom were on a northbound F train platform in the 21st Street-Queensbridge station in Astoria around lunchtime Sunday, Feb. 23, when a stranger approached them.
The stranger pushed the 7-year-old boy to the ground, police say. When confronted by the boy's mother, the person again pushed the boy, this time in the face, authorities said. The individual flashed a knife to both the child and mother before running out of the station. The person was last seen getting on an MTA bus.
Watch NBC 4 free wherever you are

The 7-year-old boy was treated at the scene for minor pain to his leg. His mother was not hurt.
Police released surveillance footage of the suspect (above).
Get Tri-state area news delivered to your inbox with NBC New York's News Headlines newsletter.

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS.