ST Enoch Centre bosses have said they are "devastated" after a construction worker died while working on a major new extension of the mall.

A 43-year-old man died yesterday after he suffered serious injuries on site at the Glasgow shopping centre. Emergency crews were called to the scene at around 3.20pm yesterday.

A joint Police Scotland and Health and Safety Executive investigation is underway. The worker is said to have died at the scene.

Read more: Construction worker dies after suffering serious injuries 

A spokesman for Sir Robert McCalpine said the construction firm is "working closely" with police and HSE.

He added: “Our thoughts at this very sad time are with the family, friends and colleagues of the worker involved.

"We are working closely with the HSE and Police Scotland. However, as there is now a live ongoing investigation, we are unable to provide any further comment.”

Work is under way to extend the centre with a cinema, nine restaurants and shops. The project is due for completion in Summer next year.

Unite the union said the death reinforced its calls for tighter regulation in the construction industry and called for a "full investigation.

Read more: Major £40million expansion under way at St Enoch Centre

Stevie Dillon, Unite regional coordinating officer, said: “Unite have repeatedly called for greater enforcement and regulation in the construction industry including stronger health and safety standards.

"In cases like the tragic death at the St Enoch’s Centre, we demand a full investigation and where it is shown that the incident occurred through recklessness or negligence then directors must face the consequences of their inaction.

"It is absolutely tragic that there has been a 70 per cent increase in deaths related to workplace incidents in the last year across all industries.

"Claire Baker’s Culpable Homicide (Scotland) Bill provides a clear way forward to tackle this scourge in the workplace, and it’s an imperative that this proposed legislation becomes a priority for the Scottish Parliament.”   

A spokesperson for St. Enoch Centre said: “We are devastated by this tragic incident and our thoughts and deepest sympathies are with the family and friends of the man involved. We will of course co-operate fully with the investigation.”