The iconic 1980s group, led by twin brothers Matt and Luke Goss, announced their reunion last year (16) and had been due to play their first major live shows since 1989 this summer (17).

While they were due to play in cities around the U.K., they have pulled out of shows in Newcastle, Nottingham and Birmingham in England and in Glasgow, Scotland.

In a statement, Matt and Luke apologised to fans, blaming "logistical reasons" for the decision to cancel the tour dates.

"Due to logistical circumstances beyond their control, it is with sincere regret that Bros have had to cancel the following dates of their forthcoming UK tour: Nottingham, Birmingham, Newcastle and Glasgow," the statement read. "Bros apologise to all their fans for any disappointment."

Bros will still perform two dates at London's O2 Arena and another at the Manchester Arena in August (17).

The first O2 Arena date on 19 August (17) was timed to mark the anniversary of their epic 1989 farewell show at London's Wembley Stadium, and sold out in a staggering seven seconds.

Ticket sales for their other dates have reportedly been slower however, and were still available before the cancellation of the gigs. Refunds have been offered to those who bought tickets.

Bros announced their reunion to much fanfare last year (16), even though original bass guitarist Craig Logan did not join Matt and Luke, both 48, in the reformed group.

The twins have enjoyed quite different careers since the band broke up in 1992, with Matt focusing on solo musical projects and Luke starring in a number of films including Hellboy II: The Golden Army and Blade II.