A gunman is on the run in Melbourne's eastern suburbs after an armed-robbery in Croydon.
Police are hunting the man who is wearing a white hooded top. He is believed to be one of two men who robbed a gaming venue on Dorset Road about 10am on Tuesday.
Police said they had arrested the other man. A police spokeswoman said witnesses said the man was carrying a gun.
The spokeswoman was unable to confirm if it was a shotgun or a pistol, or if he still had the weapon.
"He may have dumped it," she said.
The Critical Incident Response Team, Special Operations Group, dog squad and air wing are searching for the man.
Mount Dandenong Road is blocked to traffic and diversions are in place. Police said people should avoid the area or stay indoors.
People should not approach the man if they see him and call triple-0 immediately.
More to come