Rude Boy singer Rihanna, according to reports, was on Monday night rushed to hospital after a gig in Switzerland.

Local reports in the Swiss country noted that the singer was treated for an unknown condition after being taken from Zurich’s Hallenstadion venue to a private clinic at midnight. After leaving the hospital at 3am, she was apparently taken back to the venue.

A spokesman for the Hirslanden hospital, where the star was taken, told reporters: “The singer Rihanna came yesterday evening to the emergency room. We do not know the details.”

Even, reports say Rihanna has been given the all clear to carry on with her tour, which is expected to go to the UK next month.