In the Niger river delta, police shot dead six men belonging to an opposition political party. This was part of the violence related to today's presidential elections. The incumbent appears likely to win, even without cheating. But old habits die hard, and some parts of the country have a long history of intimidation against political opponents. This often results in battle, and casualties. In the southwest, police arrested 30 members of the former dominant party for trying to rig elections. Last weeks legislative elections also caused violence, but less than for the presidential elections.