Bob Weir & Ratdog have canceled all tour dates including the band's upcoming performance with the Chris Robinson Brotherhood at the Uptown Amphitheatre scheduled for Aug. 27.

A statement was posted on Ratdog's website:

Circumstances have necessitated that all scheduled tour dates for Bob Weir & RatDog are being cancelled. This applies to all dates on the summer tour starting on Thursday, August 14 in Boston through September 14 in Nashville and also includes the Jamaica event in January of 2015. Full and complete refunds are available at place of purchase. We sincerely apologize for any inconvenience.

Refunds will be available at point of purchase starting Monday, Aug. 11. Tickets purchased via phones or online will be automatically refunded.