UPDATE: Police have confirmed that a man has been charged in relation to an incident at Brisbane City yesterday morning.

The 34-year-old Caboolture man has been charged with five counts of serious assault police and one count each of going armed so as to cause fear and carry exposed weapon in a public place.

He has been remanded in custody and will appear in the Brisbane Magistrates Court on March 15.

FRIDAY: THE man who shut down Brisbane's Queen Street mall after producing a gun was well known to Sunshine Coast police after leading them on a high speed chase several years ago.

The Daily understands the same man also pleaded guilty to stalking a female police officer.

He repeatedly rang the officer on her mobile phone.

He was given a 12-month restraining order.

A court has previously heard the man was a drug addict who had been in and out of jail since he was 18.

News Ltd is reporting the man was also involved in a bizarre self-harm incident only days ago near Caboolture.

When paramedics arrived he allegedly screamed at them: "I've blown my own fingers off''

The 34-year-old had severe injuries to his arm after firing a home-made shotgun.

Part of his  his bicep had been blown off and they found one of his fingers on the roadside.