was rushed to hospital on Monday night after a gig in Switzerland
, according to reports.
Local reports say the Rude Boy star was treated for an unknown condition after being taken from Zurich’s Hallenstadion venue to a private clinic at midnight.
She then apparently left the hospital at 3am when she was taken back to the venue.
Alenka Ambroztold spokesperson for the Hirslanden hospital told reporters: “The singer Rihanna came yesterday evening to the emergency room. We do not know the details.”
Reports say Rihanna has been given the all clear to carry on with her tour - which comes to the UK next month.