A well-known Ugandan opposition figure appeared in a military court Wednesday days after he was reported missing in neighboring Kenya, and denied a charge of seeking military support from abroad to destabilize Uganda’s military forces.

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.

A prominent Ugandan opposition politician was kidnapped during a book launch in Kenya over the weekend, transferred to Uganda and is being held at a military jail in Kampala, his wife said on Wednesday.

Kizza Besigye, a former presidential candidate, went missing over the weekend as he visited the Kenyan capital, reappearing days later in military custody back in Uganda.

Kizza Besigye is a longtime critic of strongman President Yoweri Museveni. Besigye's wife says he is being held in military jail despite not being a soldier.The wife of well-known opposition politician Kizza Besigye said on Wednesday that her husband had been kidnapped in Kenya and was now in jail in Uganda.

The opposition figure has been arrested on numerous occasions in the past. On one occasion he was shot in the hand, on another he suffered eye injuries after being doused in pepper spray. The authorities have accused him of provoking them, and he has been charged with inciting violence.

The wife of Ugandan opposition figure Kizza Besigye says he was kidnapped in neighboring Kenya and is being held in a Ugandan military jail.