LONDON  - Four men will appear in a central London court on Friday on extradition warrants from Rwanda where they are wanted on charges of taking part in the 1994 genocide in which more than 800,000 minority Tutsis were slaughtered.

Police said the men, all in their 40s and 50s, were arrested at their homes in coordinated raids in various parts of the country and were being held in a central London police station.