"Ugandan police have fired tear gas during a walk-to-work protest in the capital, Kampala, and arrested several opposition politicians behind it.
For the second time this week, people were asked to walk to work to protest against rising fuel and food prices.
Police tried to arrest opposition leader Kizza Besigye, but a group of his supporters shielded him.
A BBC reporter says the authorities are clearly worried about the possibility of street demonstrations growing."
"It is now illegal to Walk to Work in Uganda..."