Musicians Kris Leonard, River Reeves, Tomas Lowe, and Jack Dakin, all of Warrington, England, and their manager Craig Tarry, died after their car plunged more than 80 feet (25 metres) from a highway bridge into a canal.

The fatal road accident came just hours after the rockers had played their first gig outside the U.K. in Stockholm, the country's capital.

Police officers say although there were two sets of safety barriers and flashing red warning lights in place on the bridge, the band's car fell through a gap which had opened to let a boat pass through, the BBC reports.

On Monday (15Feb16) officers revealed they are examining the vehicle to determine the exact cause of the crash.

The up-and-coming four-piece, who released their debut single Swings & Waterslides last year (15), had been due to return to the U.K. ahead of a show in Guildford, England.