Gregg Allman has canceled all tour dates for the remainder of 2017, according to a post on his official website.

“It has been determined that Gregg will not be touring in 2017,” reads the statement. “For those of you who purchased tickets for shows in June, contact the ticket outlet from where you purchased the tickets for a refund.”

No explanation was given for the cancellations, however Allman has struggled with several health issues in recent years.  In November Allman canceled his winter tour dates, citing health issues.