A Long Island Rail Road commuter train derailed in Brooklyn, New York, injuring more than a hundred people.

New York Fire officials have said about 103 people were injured in the Wednesday morning derailment.

The rush hour accident occurred at approximately 8.15am at the Atlantic Terminal, a major transportation hub close to downtown Brooklyn.

"The entire structure started shaking," Steben Medina told the Associated Press. Mr Medina said he was drinking coffee at the terminal when he heard the crash accompanied by screams. "I thought a bomb had gone off or something."

The National Transportation Safety Board is investigating the cause of the crash.

"Obviously, the train is supposed to stop short of the bumping block," said MTA chair Tom Prednergast. "It did not do that, so it’s one of things we will look at as part of investigation."

All injuries are believed to be minor. Mayor Bill De Blasio did not immediately speak publicly about the incident, as the Metro-North transit system is overseen by Gov Andrew Cuomo, but he later told reporters that the most serious injury appeared to be a broken leg.

Mr Cuomo added: “A broken leg is not good, but we’ve been through situations where we’ve had worse."

"Luckily … all things considered, this was a relatively minor accident," he said.

LIRR trains and some New York City subways experienced some delays, but they are expected to be fully operational by evening rush hour.

The derailment comes after a New Jersey transit commuter train crashed at a station in Hoboken in September. The incident killed one woman and injured more than 100.