Myanmar's pro-democracy leader Aung San Suu Kyi fell ill during a press conference in Bern, Switzerland, Thursday. The Nobel Peace Prize laureate said she was exhausted by the long trip to Europe, her first in 24 years.

According to reports, Kyi looked pale as she stood at the conference with Swiss Foreign Minister Didier Burkhalter, and she bent over in pain before vomiting. She was immediately escorted out by aides.

“She’s just a bit tired,” spokesman Jean-Marc Crevoisier told the Associated Press. “I would be too after the long day she’s had.”