The Yardbirds upcoming U.S. tour has been postponed due to "health concerns".

The rock supergroup brought back its original guitarist, Top Topham, for the tour, which was set to begin in Connecticut on 3 and 4 April (15), but it appears fans will have to wait a little longer to see the 1960s band.

Topham, who left the line-up in the mid-1960s to continue with his studies and was replaced by a young Eric Clapton, was hoping to hit the road with Yardbirds founder Jim MCCarty, bassist Kenny Aaronson and singer Myke Scavone, who previously fronted Ram Jam.

A statement from the band's management, obtained by Wenn, reads: "Unfortunately, due to health concerns and extenuating circumstances, The Yardbirds’ Spring 2015 tour dates have been postponed."

There were no further details or any rescheduled dates as Wenn went to press.