Counter-terrorism police are investigating a suspicious package sent to Glasgow University after it was linked with improvised explosive devices sent to three major London transport hubs.

Police Scotland and the Metropolitan Police are now working together on the inquiry after a controlled explosion was carried out in Scotland’s biggest city on Wednesday.

The package was detected the day after devices posted with Irish stamps were received in London, prompting an investigation by counter-terrorism police into a possible Irish dissident plot.

Assistant Chief Constable Steve Johnson said: "There are similarities in the package, its markings and the type of device that was recovered in Glasgow to those in London.

“Therefore, we are now treating it as being linked to the three packages being investigated by the Met in London and both investigations are being run in tandem.

"Our enquiries into the Glasgow package are at an early stage but there is no ongoing risk to the public.”