Melbourne mother knocked down in hit-and-run dies from injuries

The mother-of-two knocked down in a hit-and-run outside a Melbourne shopping centre has died in hospital from her injuries.

Andrea Lehane was left with "unsurviveable brain damage" after she was allegedly hit by a teenage boy on a "monkey bike" motorcycle as she crossed a pedestrian crossing in Carrum Downs on Thursday shortly after 5pm.

The 34-year-old mother was taken to the Alfred Hospital where she was pronounced dead on Friday evening.

Three teenage boys handed themselves into police after executing a number of search warrants in suburbs east of Melbourne following an investigation by Major Collision Investigation Unit detectives.

The group of four or five motorbike riders hit mother-of-two while she was on a pedestrian crossing before fleeing the scene shortly after 5pm on Thursday evening.

"The boys, a 16-year-old from Carrum Downs, a 17-year-old from Seaford and a 15-year-old from Carrum Downs, are assisting Major Collision Investigation Unit detectives with their enquiries," police said in a statement on Friday afternoon.

"Police executed a number of warrants at houses in Carrum Downs, Seaford and Frankston today."

The 17-year-old Seaford boy was charged with reckless conduct endangering life, reckless conduct endangering persons, unlicensed riding and unregistered vehicle.

He was bailed by police and will appear at a children's court at a later date.

The 16-year-old Carrum Downs boy is expected to face the same charges while the 15-year-old remains in custody.

A fourth boy from North Frankston was interviewed by police on Thursday night and later released. Police are still searching for a fifth boy possibly involved in the incident.

Ms Lehane suffered "unsurviveable brain damage," her husband said.

Ms Lehane's family confirmed her condition as they kept a vigil at her bedside at the Alfred Hospital.

Ms Lehane, whose children are aged three and four, has been described as an "extraordinary wife, mother, daughter, sister, aunty, niece and friend".

Her husband, James, has released a statement saying his wife would not survive the accident.

"On Wednesday afternoon my family's lives changed in an instant from a careless and avoidable accident," he said.

"As a result of the impact, my wife suffered unsurvivable brain damage.

"The team at The Alfred have done an extraordinary job, but the damage has been confirmed to be too great.

"Being a nurse, Andy was always keen on organ donation, so as a family we have consented to her going through a complete organ donation process.

"Some time today or tomorrow she will go into theatre, with her life support machines, for her final act of caring and giving.

Sequence of events

"I will be taking her children, her three-year-old son and four-year-old daughter, to see their mum for the last time before this occurs.

"She was an extraordinary wife, mother, daughter, sister, aunty, niece and friend. She was very content in her life and loved and cared for her family and friends - she always put them first. She will always be remembered and missed. Words cannot explain how I feel."

Ms Lehane was flown to the Alfred Hospital in a critical condition yesterday after she was struck by one of four ‘monkey bikes’ at the Carrum Downs Regional Shopping Centre.

It is understood the driver of the first miniature motorcycle did a ‘mono’ over the crossing before a second bike hit Ms Lehane, who was thrown heavily to the ground. Two other bikes avoided the victim and fled with the rest of their company.

The Major Collision Investigation Unit attended the scene last night and Detective Inspector Bernie Rankin has since urged the riders to do the “decent human thing” and come forward.

“Now that they realise the gravity of what’s happened here I would certainly appeal to their sense of decency and just simply come forward to the local police and give themselves up so we can sort through all this,” Mr Ranking told News Corp Australia.

“They were aware this young woman had been hit very, very heavily and it was obvious to them that she landed very heavily on the roadway and in all likelihood would have been seriously injured.

“Regardless of their age, the decent human thing to do certainly would be to stop and help her."

It is illegal to ride monkey bikes on Victorian roads.

Witnesses or anyone with information to call Crime Stoppers on 1800 333 000.