One of the first people to rush to the scene of the 1977 Granville train disaster has died, on the anniversary of the crash.
Off-duty police officer Dick Lamb was one of several volunteers who tried to help those injured when the Mt Victoria to Sydney express train derailed on January 18.
The derailment brought down the Bold St bridge onto the carriages, leaving 83 people dead and more than 200 injured.
Mr Lamb, believed to be aged in his 70s, died from cancer on Monday.
"He was one of the unsung heroes of the disaster," Granville Memorial Trust president John Hennessey said.
"He was a very brave, humble man and provided great support to all the victims over the last 39 years," he said.
"We are all in mourning and were saddened to hear of his death".
Survivors, emergency crews and those who lost loved ones gathered for a ceremony on Monday to commemorate the 39th anniversary of the disaster.
Mr Lamb, who had been battling cancer for the last few months, was unable to attend the memorial.