Activists gathered in Kenya's capital of Nairobi on Thursday to demand the release of Ugandan opposition leader Kizza Besigye, a day after he collapsed in court in Kampala

KAMPALA, Uganda (AP) — Ugandan opposition leader Kizza Besigye appeared to collapse in court on Wednesday during a trial in which he is facing treason charges.

Besigye’s wife, UNAids executive director Winnie Byanyima, and others say the opposition leader's health is failing