Three topless Ukrainian protesters were detained on Saturday while trying to break into an invitation-only gathering of international CEOs and political leaders to call attention to the needs of the world's poor. After a complicated journey to reach the heavily guarded Swiss resort town of Davos, the women arrived at the entrance to the congress centre where the World Economic Forum takes place every year. With temperatures around freezing in the snow-filled town, they took off their tops and climbed a fence before being detained. Davos police spokesman Thomas Hobi said the three women were taken to the police station and their papers were checked. The activists are from the group Femen, which has become popular in Ukraine for staging small, half-naked protests to highlight a range of issues including oppression of political opposition.