Roof hatch flies off moving Sydney train

A man who was injured after a roof hatch flew off a train as it approached a station in Sydney's inner-west has received an apology from NSW Transport Minister Andrew Constance.

The hatch fell off the train as it was approaching a platform at Burwood Station on Monday afternoon.

The injured commuter was treated by paramedics but wasn't hospitalised.

A small fire on the roof self-extinguished by the time NSW Fire and Rescue crews arrived.

Mr Constance said the Australian Transport Safety Bureau and Office of Transport Safety Investigations would be examining the damaged train.

"I'd like to offer my sincere apologies to the man injured after today's incident at Burwood train station," he said in a statement.