Police in Uganda have banned an opposition rally planned to congratulate North Africans for overthrowing oppressive leaders.

A police spokesman said Wednesday that the rally in the capital Kampala could incite violence.

The organizers of the protest said the demonstration, planned for Friday, would celebrate the power of people in North Africa following the overthrow of leaders in Libya, Tunisia and Egypt.

It is not clear if the demonstrators will carry on with their plans.

Uganda's opposition has held several rallies in recent month to protest rising prices.

The rights groups Human Rights Watch says clashes between police and protesters in the spring killed nine people and wounded more than 250.

Opposition leader Kizza Besigye was arrested several times earlier this year for leading protests against rising prices.