Teen charged over grand final day incident

A 15-year-old boy has been charged with two counts of attempted murder after an incident in Melbourne's CBD on AFL grand final day.

It's alleged the boy, dressed in riot gear with a full-face helmet, drove erratically through the CBD before he was tasered by police around 8am on Saturday.

He was taken to hospital before being charged on Sunday with attempted murder, six counts of reckless conduct endangering life, and assaulting and resisting arrest.

He's due to appear in a children's court at a date to be set.

No one was injured in the incident outside Flinders Street Station, several hours before the grand final.

Video footage taken by passers-by and posted online showed a green four-wheel drive reversing at high speed down Swanston Street before spinning 180 degrees.

A member of the public threw a hire bike under the vehicle to try to stop it, while police rushed to the area.

Acting Superintendent Wayne Newman said on Saturday investigators had no information the teenager was trying to harm anyone.