Two Ugandan opposition members of parliament have been arrested and imprisoned over the killing of a local official in 2002.
The political temperature has been rising in Uganda
The two MPs are members of a recently formed opposition political party, while the murdered local was from the ruling Movement.
The MPs' party says the arrests were politically motivated.
The police deny this, saying they have been investigating thoroughly, which is why the arrests took so long.
Opposition parties have been severely restricted but as multi-party politics looks set to return, the political temperature is rising.
The two MPs have been taken to Luzira prison in Kampala after appearing in court accused of murder.
Okumu Reagan and Nyeko Ocula both belong to the opposition Forum For Democratic Change (FDC).
Mr Reagan recently wrote to government ministers alleging that the Ugandan military had been harassing opposition supporters in northern Uganda - detaining some of them illegally.
Officials of the FDC party say the arrests are aimed at curbing opposition support in the north of the country.
The north of Uganda has been at war for the past 19 years and is largely opposed to the government of President Yoweri Museveni.
Civilians have in the past often been arrested accused of supporting the rebel Lord's Resistance Army operating in the region.
Mr Reagan, has himself frequently been accused of being a rebel supporter.
The Ugandan police say the two MPs will be charged this week along with three other people accused of the 2002 killing.
The New York-based Human Rights Watch has in recent reports expressed concern at politically motivated detentions and torture in Uganda - claims which the Ugandan authorities vehemently deny.