A fifth investigation has been launched into allegations of misconduct against Police Scotland chief constable Phil Gormley.

The Police Investigations and Review Commissioner (Pirc) began its latest inquiry after a complaint was referred by the Scottish Police Authority (SPA).

Commissioner Kate Frame said the allegation would amount to gross misconduct if proved.

A Pirc spokesman said: "The commissioner has received five misconduct referrals about the chief constable from the SPA in the past six months, all of which are currently being investigated.

"Once each investigation is concluded, the commissioner will submit a report to the SPA containing a summary of evidence and an opinion on whether the misconduct allegations should be referred to an misconduct hearing."

Mr Gormley, who has been on leave since September last year, denies the allegations against him.