Elton John, seen here performing in Zurich on Oct. 16, is reportedly in a London hospital. John has cancelled his three U.S. gigs with Billy Joel in November. (Walter Bieri/Keystone/AP)

Singer Elton John has postponed several more concert dates, putting off three performances with Billy Joel in the United States in November.

John recently put on hold the final dates of his Red Piano tour in Britain and Ireland.

A posting on his website over the weekend said promoters were "informed by management that Elton has been advised by his doctor to postpone these performances due to a serious case of E. coli bacterial infection and influenza."

That means his concerts with Joel in Seattle on Nov. 4 and 7 and another in Portland, Ore., on Nov. 10 are postponed.

The pair already had a previous postponement in the summer during their Face 2 Face tour. Joel had to pull out because he got sick. They had been on the road for two months at that point.

Fans are being asked to hold on to their tickets.

The cancelled concerts in Britain and Ireland are expected to be back on in December.

British media are reporting that John has checked in to a hospital in London. His Canadian partner, David Furnish, told reporters the performer is "fine."