Punk rock band Green Day announced Sunday it is postponing the first three shows of its upcoming tour. The bank also called off one show due to an illness that has affected several members of the band and the crew.

Shows at St. Louis, Chicago and Detroit have been postponed and the one in Toronto scheduled for Friday has been cancelled.

“We’re so sad to announce we have to postpone three shows and cancel Toronto. Many of us have been battling this infection for days on end to be ready, and it just got the best of us,” the band said in a statement. Tickets will be refunded, the band added.