EAST VILLAGE, Manhattan (PIX11) — A 30-year-old man who died after getting into a fight on a Manhattan subway, had more than 40 arrests under his belt.

Officers responded to a report of a fight on a northbound F train at the Broadway-Lafayette Street subway station on Monday afternoon. They discovered a 30-year-old man unconscious, according to the NYPD.

First responders transported the man to Lennox Hospital where he was pronounced dead, police said.

A 24-year-old man, the other person involved in the fight, was taken into police custody for questioning but was not charged, authorities said.

Officers still have not named the two men but have said the 24-year-old is a former United States Marine. According to police the 30-year-old became erratic and started harassing passengers, the 24-year-old stepped in and restrained the erratic man, according to police sources.

The investigation remained ongoing as of Tuesday night. No arrests have been made.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting crimestoppers.nypdonline.org, downloading the NYPD Crime Stoppers mobile app, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).