*Turns out it was an issue with Rihanna’s rib that led to the singer’s brief hospitalization Monday night in Switzerland.

The 22-year-old, who was taken to a private clinic after performing in Zurich, “had an injured rib and went to have it looked at to be sure it was nothing serious, and it wasn’t,” her rep tells People.com.

Rihanna continued the European leg of her “Last Girl on Earth” tour Tuesday night with a concert in Lyon, France, and is expected to play in Marseille on Wednesday, according to reports.

“All is okay and the tour is going great,” the rep added.

The North American leg of Rihanna’s “Last Girl on Earth” tour kicks off July in Seattle with pop star Ke$ha.