A cyclist is in "the fight of his life" after being struck by a car in central Victoria.
The man, aged in his 40s, was one of three cyclists struck by a car travelling in the same direction in Macedon on Monday morning, police say.
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Three cyclists hit by car in Macedon
A man is fighting for life on Monday after he was one of three cyclists struck by a car travelling in the same direction in Macedon, the incident just one of multiple crashes over the long weekend. Vision courtesy Seven News Melbourne.
Paramedics were called to Black Forest Drive about 10.45am.
The cyclist was flown to the Royal Melbourne Hospital with head and back injuries. He remains in a critical condition.
![Police at the scene of the crash in Macedon.](http://web.archive.org./web/20170615054650im_/https://www.fairfaxstatic.com.au/content/dam/images/g/w/p/e/2/w/image.related.articleLeadwide.620x349.gwpdv2.png/1497255600685.jpg)
A second man, aged in his 20s, sustained head injuries.
He was taken by road to the Royal Melbourne Hospital in a stable condition.
A third man was treated at the scene and later taken to hospital.
Detective Sergeant Mark Amos said investigators were considering distraction, speed and impairment from drugs or alcohol as possible causes for the accident.
![A mangled bicycle at the scene of the crash.](http://web.archive.org./web/20170615054650im_/https://www.fairfaxstatic.com.au/content/dam/images/g/w/p/e/2/v/image.related.articleLeadwide.620x349.gwpdv2.png/1497255600685.jpg)
The badly-injured cyclist "is in the fight of his life to try and survive", Detective Sergeant Amos said.
A 26-year-old man from Parkville is assisting police with inquiries, he said.
![The road closure at Macedon.](http://web.archive.org./web/20170615054650im_/https://www.fairfaxstatic.com.au/content/dam/images/g/w/p/e/9/8/image.related.articleLeadwide.620x349.gwpdv2.png/1497255600685.jpg)
"This is a very timely and sobering reminder of how seriously we need to take our responsibilities as road users and look out for each other, particularly when it comes to vulnerable road users like cyclists," Detective Sergeant Amos said.
"It's a very good example of why we keep saying that distraction, speed, drugs and alcohol are killers and cause maiming injuries on our roads."
Police are still at the scene of the collision.
Macedon-Woodend Road and Black Forest Drive are closed between Mount Macedon Road, Gisborne, and Mcbean Avenue, Macedon.
The road is expected to be closed until 6pm, VicRoads says.
Motorists should avoid the area and seek an alternate route.
Major collision investigation underway after 3 cyclists were hit by a vehicle in Macedon this morning. @7NewsMelbourne pic.twitter.com/OcYHYCQW7w
— Chris Martin (@thechrismartin7) June 12, 2017
The driver of the car is assisting police with inquiries but detectives are keen to speak with anyone who witnessed the incident.
Anyone with information can call Crime Stoppers on 1800 333 000.