Emergency services were called to the derailment at a busy Haymarket intersection about 10.40am on Monday.

Paramedics assessed several light rail passengers at the scene near Central Station, and a woman in her 70s who suffered chest injuries was taken to St Vincent’s Hospital in a stable condition.

A firefighter in his 40s suffered minor injuries and was taken to Royal Prince Alfred Hospital.

“This occurred in a really busy part of the CBD with a lot of pedestrians so we’re thankful that no one was seriously injured,” NSW Ambulance Inspector Ben Saywell said.

-AAP