A 26-year-old Dublin man has pleaded guilty in a New York court to assaulting Longford man, Danny McGee, who died after being punched outside a pub in Queens last year.

Steven O'Brien - with an address at 42nd Street, Queens, New York - will serve six months in prison for the offence.

The sentence was agreed as part of a plea deal at Queens County Criminal Court today.

Mr McGee, 21, and from Drumlish, Co Longford, was found lying unresponsive on the ground outside The Gaslight bar in Queens shortly before 4am on Thanksgiving Day last year, 22 November.

He was taken to hospital but later pronounced dead.

The cause of his death was determined to be a blunt impact injury to the head.

Prosecutors said O'Brien punched Mr McGee once to the side of the head after the two men became engaged in a verbal row.

O'Brien wept in court today and apologised to Mr McGee's family who had travelled from Ireland for the court hearing.

Speaking outside the court, Mr McGee's mother Colleen said she was glad the case was over but added that there are no winners.

"Danny will never come back. We miss him every second of every day," she said.

Steven O’Brien’s lawyer Matthew Gartenberg said his client was remorseful, apologetic and sad.

"This was a very tough day for everyone. We’re happy to have some closure but everyone loses today," he said.

O’Brien was released on continuing bail and will return to court on 8 January for sentencing.