The incident was reported Friday morning around 10 a.m.
[Ads /]
Police say the incident caused passengers to try to flee the train and the station.
Police say a 77-year-old male was sitting on a southbound R train when he was pepper sprayed during an unprovoked attack.
The suspect, a male, then fled from the station.
The victim was taken to Bellevue Hospital where he's expected to survive.
No arrests have been made and the investigation is ongoing.
MTA Spokesman Michael Cortez released the following statement:
[Ads /]
"Following a short suspension of service on lines serving Union Square due to FDNY and NYPD response at that station, regular service has resumed. The cause of the incident leading to that response appears isolated."
ALSO READ | Man dies after being stabbed in unprovoked subway attack in New York City
Subway stabbing ends in death in Bronx
----------
* Get Eyewitness News Delivered
* More Manhattan news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube