SEE IT: Knife-Wielding Dad With Stroller Threatens Subway Rider

WEST VILLAGE, NY — A furious straphanger smacked his toddler on an E train, then threatened a fellow subway rider with a knife for complaining about the child abuse, police said Sunday.

The suspect was riding with his toddler-aged son in an uptown E train near the West Fourth Street station when he allegedly struck the child at approximately 3:30 p.m. on June 24, authorities said.

Another subway rider, who was on the train with his wife and child, argued with the man about hitting the kid. The unhinged straphanger flew into a rage and shouted a string of profanities at the 45-year-old man and his family. He was caught on camera screaming, "It’s my kid, n-----! Worry about your own kid, n-----!" and repeatedly yelled "suck my d--k," officials said.

Once the train pulled into the station, the brute pushed the stroller off the train but held the train car doors. He pulled out a small knife and continued to shout at the man. The suspect spit at the family through the open train doors before fleeing, the video shows.

Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).

Photos courtesy of NYPD