The band said that they were "extremely disappointed by the events that have transpired" and "want to apologize" to their fans for the unknown reason that has postponed the chart topping group's first ever tour of Europe.
"Bone Thug's-N-Harmony are going to reschedule the whole European tour in October, with many more dates to be announced," said the band's touring agent, Jamie Adler.
The group is currently replacing dates for new upcoming tour, which will kick off in the fall.
Dates will be announced at www.bonethugsnharmony.com as soon as new tour dates are confirmed.
Bone Thugs-N-Harmony released their most recent album Strength and Loyalty in May.
The album reached #2 on the Billboard Top 200 chart and #1 on the Billboard Rap chart.