File picture - Rwandan refugees demonstrate outside the court where the attempted murder case is being heard.

A witness says that days before an exiled Rwandan army general was shot and wounded in South Africa, two of the men charged in the shooting were plotting another attempt on his life.

The witness testified Wednesday in the trial of three Rwandans and three Tanzanians accused of attempted murder, conspiracy to commit murder and weapons charges in the June, 2010 shooting of Lt. Gen. Faustin Kayumba Nyamwasa. The witness, Adriani Kamali, was once a roommate of one of the defendants.

Rwandan authorities deny allegations of involvement that have been made by Rwandan President Paul Kagame's opponents.

Prosecutors won't say whether they believe Kagame's government was behind plots against Nyamwasa. But they have said key witnesses are under police protection in South Africa because they fear Rwanda's government. - Sapa-AP