A member of the sea shanty group Fisherman's Friends who was seriously injured in a freak accident which killed the band's tour manager has died in hospital.

Trevor Grills, 54, suffered serious head injuries when he was hit by a falling metal door at the G Live concert venue in Guildford, Surrey, on Saturday.

The Cornish-based group's manager, Paul McMullen, died at the scene after suffering leg injuries. Mr Grills was taken to St George's Hospital in Tooting, London, but died on Monday night, Surrey Police confirmed.

In a statement, the band paid tribute to Mr Grills as "a much-loved and valued friend". A spokesman added: "We are all devastated."

In a statement, the Port Isaac singers said: "Trevor was a much-loved and valued friend to all of us and was an integral part of the Port Isaac community. He will be sadly missed. Our thoughts are with Trevor's family at this very difficult time."

Darcus Beese, president of Island Records, the group's label, added: "We are all deeply saddened at losing Trevor. The Fisherman's Friends are exactly that: life-long partners in all they do and our thoughts and prayers go out to them and Trevor's family and friends."

Police were called to the venue shortly before midday on Saturday after a report that two men were trapped under a metal door in the loading bay. Mr McMullen, who is believed to be a father and husband from Stockport, was treated by paramedics but was declared dead at the scene.

The Friends were due to be performing that night as part of a tour, but the concert was cancelled following the incident. The venue has since reopened. The Health and Safety Executive has been informed of the death, Surrey Police confirmed.

G Live venue director Alvin Hargreaves said: "We are devastated to hear that Fisherman's Friends band member Trevor Grills died in hospital last night as a result of the head injuries suffered on Saturday.

"Surrey Police and the Health and Safety Executive investigations are ongoing with no further information being available at this time. Guildford Borough Council and HQ Theatres, who own and manage the venue respectively, continue to fully assist with the investigation. The thoughts and prayers of the G Live staff are with the families and friends of all who have been affected by this tragic accident."