Police expect to charge two men after cyclists were allegedly hit with a rolled-up newspaper while riding along Beach Road in Melbourne’s south east on Saturday morning.

Bayside Police Sergeant Wayne Carter said two men in their early 20s allegedly made admissions after witnesses came forward.

‘‘From about 7.50am onwards, there were several calls in relation to people causing trouble on Beach Road and assaults.

‘The offenders have hit people in the head and bottom with a newspaper.’’

Cyclists took to Twitter to post photos of the men in the car and police intercepted the vehicle.

Police said the men would be charged with assault and traffic offences.

Cyclist Peter Bulleen, who ducked to avoid being hit, said the scene was "carnage" as a ute drove alongside riders with a man leaning out of the passenger window and belting people in the back of the head.

‘‘A large rolled-up newspaper, when you are cycling along at that speed, to my mind, is assault with a deadly weapon," he said.

‘‘A lot of people lost their balance and hit the deck at speed. They were lucky they weren’t hit by the wheels of their bike or the wheels of following cars."

Jessica Lane posted that she had never seen anything like it in 15 years.

‘‘Be safe out there ... There is an idiot in a white 4WD driving down Beach Road with a peice [sic] of tubing ... Hanging out the window hitting cyclist[s]. He hit me ... and he [hit] at least three people in front of me.’’

Beach Road is a notorious hotspot for conflicts between riders and motorists.

Bayside Touring Club secretary Joe Astbury said he had never seen cyclists deliberately targeted like on Saturday.

‘‘We’ve never seen anything like it. I don’t know whether it’s widespread or whether it’s a copycat of somebody else who’s done it,’’ he said.

‘‘We just don’t know.

‘‘Riders come in all sorts of different flavours. You’ve got the type of ‘Hellfire’ riders who ride up and down Beach Road, then you’ve got mum, dad and the kids, and people who want to dawdle, go along the trails. 

‘‘I think there needs to be consideration and respect from both sides, both from cyclists and from drivers.’’