Since Nolasco shared the video Friday it has been

A heartwarming video shows the moment a man gave the shirt off his back to a cold man who was shivering on a Brooklyn-bound A train in New York City.

The viral clip was shared to Facebook by Lazaro Nolasco, who told the New York Daily News that he boarded the somewhat empty train in Washington Heights Friday night.

Nolasco said the elderly man, who was sitting alone, didn't have a shirt on and his 'body looked sick'.

Temperatures in the city neared freezing as the 21-year-old man decided to record the interaction between the elderly man and the Good Samaritan.

A heartwarming video shows the moment a man gave the shirt off his back to a shirtless man who was cold on a Brooklyn-bound A train in New York City

The viral clip was shared to Facebook by Lazaro Nolasco, who told the New York Daily News that he boarded the somewhat empty train in Washington Heights Friday night. Nolasco said the elderly man, who was sitting alone, didn't have a shirt on and his 'body looked sick'

The video, which has been viewed over nine million times on Facebook, first shows the do-gooder shaking out the white T-shirt he had just taken off of his body and walking over to the man sitting alone.

The conversation between the pair isn't audible, but the strap-hanger can be seen gently helping the man put the shirt on, as he his left in pants and a white tank-top.

Once on, he then helps to adjust the fit of the shirt on the man, before walking back to his seat.

Moments later he returns with a black hat that he also placed on the man's head.

The conversation between the pair isn't audible, but the strap-hanger can be seen gently helping the man put the shirt on, as he his left in pants and a white tank-top

Moments later he returns with a black hat that he also placed on the man's head

As the video comes to an end, it's unclear what became of the two men.

'The guy did a good deed, so I wanted to record it,' Nolasco told the Daily News. 'I would tell him, 'God bless him.' That was thoughtful.'

Nolasco said that he got off the train at 42nd Street, but said they still remained on the train.