Rihanna was forced to cancel two concerts in Sweden last week after falling ill.

After canceling a show in Malmo, Sweden last Monday, the singer also had to cancel a second show in Stockholm the following Wednesday night.

Kristofer Akesson, a spokesperson for Live Nation told the AP that similar to the first incident, Rihanna didn’t feel well before her concert in Stockholm Wednesday, and she decided (after consulting with a doctor) to cancel the show about an hour before she was scheduled to take the stage.

Without giving any more details, Akesson said Rihanna, who was able to perform at the first of the two scheduled Stockholm shows, was “exhausted” and didn’t “feel well.”

Promoters have said they plan to reschedule the gigs, but have not said when they will take place.

Rihanna is currently on the European leg of her worldwide “Loud” Tour, which kicked off in the U.S. this past summer. She is expected to continue touring until the end of the year.