Uganda has ordered citizens returning from the Democratic Republic of the Congo to undergo 21 days of quarantine as part of measures to prevent the spread of Ebola.

Health Minister Chris Baryomunsi announced the measure amid concerns over cases reported in Kenya and Nigeria.

Uganda said it has no active infections following the end of its own outbreak in July.

Authorities have also tightened screening at Entebbe International Airport and land borders, while returning travellers will bear the cost of quarantine.