Ugandan police fired tear gas to disperse furious voters Thursday in the capital Kampala as the election commission apologised for hours-long delays in delivering ballot papers, AFP reporters said.

Voting was due to begin at 07:00am (0400 GMT) but was stalled for several hours in some polling stations in the city and surrounding Wakiso district when ballot boxes and papers did not arrive on time. The capital traditionally shows strong support for the opposition.