The iconic 1980s group, led by twin brothers Matt and Luke Goss, announced their reunion last year and had been due to play their first major live shows since 1989 this summer, reported Contactmusic.
While they were due to play in cities around the UK, they have cancelled shows in Newcastle, Nottingham and Birmingham in England and in Glasgow, Scotland.
"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. Bros apologise to all their fans for any disappointment," the duo said in a statement.