Mumford & Sons have postponed three US dates after their bassist Ted Dwane was taken to hospital with a blood clot on his brain.

The British group have pulled upcoming shows in Dallas, Woodlands and New Orleans, but they have assured fans that the musician will have a speedy recovery following an operation.

A statement on the band's official website reads:

"Our friend and bandmate Ted has been feeling unwell for a few days, and yesterday he was taken to a hospital to receive emergency treatment. The scans revealed a blood clot on the surface of his brain that requires an operation. Ted is receiving excellent care and we are being assured that he will recover quickly from surgery."

It continues: "Sadly we have to postpone three upcoming headline shows planned for this week in Dallas on Tuesday 6/11, Woodlands on Wednesday 6/12, and New Orleans on Thursday 6/13. All dates will be rescheduled and will be announced as soon as we can; all tickets for this week’s events will be honoured at their rescheduled dates. We have no plans to cancel or postpone any other appearances along this current tour."

Mumford & Sons' next scheduled date is due to take place in Manchester, TN on June 15.