Wallabies captain Michael Hooper could escape criminal charges after a drunken incident in Byron Bay leaving cars and street signs damaged overnight.

Hooper and a friend, believed to be 23-year-old Zach Morrison, were out in the NSW coastal town at about 2am today when Morrison allegedly jumped on a parked car.

The sign damaged by a group allegedly including Wallabies captain Michael Hooper. (9NEWS) (9NEWS)

The pair was seen by security guard Mick Reeves, who was coming off his shift at a nearby block of units.

The guard called the police, who arrived after Hooper and Morrison had allegedly attempted to rip a signpost out of the ground.

It is understood the police will seek to charge Morrison but not the star flanker over the incident.

Wallabies captain Michael Hooper was spoken to by police after an incident in Byron Bay overnight.

Australian Rugby today confirmed Hooper's involvement but said he was "not involved in any serious misdemeanour" and "Michael has been open and transparent with the police".

Hooper, also 23, earlier this year became the youngest man to captain the Wallabies since Ken Catchpole in 1961.