An elderly woman has been hit by a truck in Newtown.

An elderly woman in a wheelchair has been hit by a truck in Sydney’s inner west.

The 87-year-old woman was on the footpath next to King St in Newtown when a truck crashed into a set of traffic lights and struck her.

A NSW Ambulance spokesperson told news.com.au they received a report of a truck accident on King St just before 11am.

Crews were informed that an elderly woman had been thrown from her wheelchair as a result of the crash.

Paramedics treated the woman for a head injury before transporting her to the Royal Prince Alfred Hospital in a serious condition.

#BREAKING Crash in Newtown where a truck has hit an elderly woman in a wheelchair as she crossed the road with her daughter. Now in hospital. First on scene ... @10NewsFirstSyd pic.twitter.com/p0XFVyiK7W — Gillian Bowen (@GillianHBowen) July 30, 2019

The 34-year-old male driver of the truck allegedly tried to flee the scene after hitting the woman.

Witnesses reported seeing the man, who was in a moon boot, hobbling down the street after the crash.

Several members of the public chased him down and apprehended him on Wilson St.

He was arrested and taken to the hospital for mandatory drug and alcohol testing.

Footage from the scene, posted to Twitter by Channel 10 reporter Gillian Bowen, shows a white truck crashed into a traffic light pole.

Traffic is heavy in the area as a result of the incident.

Crash investigators attended the scene and motorists were warned there may be short closures of all southbound lanes while investigations are carried out.

Drivers are wer being urged to avoid the area if possible or allow for extra travel time.