Kenya's government said it was investigating how a prominent Ugandan opposition leader was spirited out of Nairobi this week, amid growing criticism that it had failed to protect foreign dissidents on its soil.

The arrest of a Ugandan opposition figure in Kenya was carried out with Nairobi's knowledge, a Ugandan government spokesperson told AFP Friday.

Uganda’s Minister of Information, Communications Technology, and National Guidance, Chris Baryomunsi, has revealed intricate details about Kenya’s involvement in the arrest of Ugandan opposition leader Kizza Besigye.

Veteran Ugandan opposition figure Kizza Besigye appeared in a military court in Kampala on Wednesday, accused of seeking to compromise national security, after his reported abduction in neighbouring Kenya at the weekend.