Melbourne taxi driver a hero after Bourke St tragedy

Henry Dow and Lou after Melbourne attack Facebook
Lou has become a hero since the incident (Facebook)

A Melbourne taxi driver has become a hero after assisting victims and rescuers in the aftermath of Friday's Bourke St tragedy.

Five people were killed and dozens injured when Dimitrious Gargasoulas drove his car through the pedestrian mall.

In a post shared to Facebook, law student Henry Dow told of how he came into contact with the driver, Lou, while giving first aid to an injured woman.

"Lou grabbed my hand and firmly told me to keep it together, that I was ok and that we needed to keep strong for this woman" Mr Dow wrote.

He said Lou gave orders to nearby pedestrians and worked to keep victims lying on the pavement calm.

"It kept going through my head, "thank f**k I lucked out and have an emergency services veteran here with me" Mr Dow wrote.

"Surely Lou was Ambulance, Police or SAS. Lou was not.

"Lou, in his white shirt and neat dark tie, was a taxi driver."

Mr Dow said Lou was "everything great and courageous you have seen, heard or read, rolled into one authentically humble bloke".

He went on to write about the "love and sense of community" that has come out of the tragedy, urging readers not to "feel sad for the state of community", but instead remember "just how brave and loving strangers can be".

The post had over 56 thousand likes on Facebook on Monday evening.

Gargasoulas has been released from hospital and police say he will face multiple murder charges.