THE explosive package which was sent to a named person at the University of Glasgow was “intended to cause harm and fear” to the entire campus and postal workers who handled it.

Police are still investigating and arrests have yet to be made after the Russell Group institution in the West End of the city was put on lockdown in March.

Detectives are appealing for anyone who may have handled the package - in particular, postal workers - to come forward and help with their enquiries.

They also want to speak to anyone who may have information about the origins of the device.

READ MORE: Glasgow University buildings evacuated after 'suspicious' package is discovered on campus

On March 5, three packages containing bombs were delivered to transport hubs in London.

The following day, a fourth package was recovered at the University of Glasgow.

On March 11, a claim of responsibility for the packages was made by a group claiming to be the “New IRA.

Then, on March 22, a fifth package was recovered, having been returned to a postal depot in Limerick, Republic of Ireland. This package was forensically examined and is being treated as part of the same series.

Assistant chief constable Steve Johnson, at Police Scotland, said the Glasgow device was a “reckless act which caused widespread panic and concern.”

READ MORE: 'IRA' device sent to the University of Glasgow was for 'army recruitment officer'

He added: “The package which was sent to a named individual in Glasgow University was obviously intended to cause harm and fear, not just to the person it was addressed to, but to everyone present in the campus at the time as well as the postal workers who handled it.

“This was a reckless act which caused widespread panic and concern and, while thankfully, no-one was injured, the disruption it caused to the university’s students and staff - in addition to the local community - was significant.

“We are working very closely with the Metropolitan Police Service in their investigation and would urge anyone who may have information which could assist officers to get in touch.”

Further analysis of the five packages has been carried out by forensic experts and, after identifying similarities between the devices and the methodology, investigation teams have formally linked the packages to those sent to various British Army Recruitment Centres in 2014.

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Deputy assistant commissioner Dean Haydon, Senior National Coordinator for the UK’s Counter Terrorism Policing, said: “Our enquiries continue, but clearly a key element of the investigation now is the link between the devices previously sent in 2014, and the five sent earlier this year.

“As with any investigation, we will be led by the evidence but, at this stage, our principal line of enquiry is the devices were sent by a dissident republican group.”

Anyone with information is being urged to contact UK police in confidence by calling 0800 789 321, or, if you wish to remain anonymous, call Crimestoppers on 0800 555 111.