Violence has marred the fourth day of voting in Egypt’s parliamentary elections. Police detained hundreds of Islamists from the opposition Muslim Brotherhood movement. Thousands of riot police were deployed in constituencies where the Brotherhood was fielding candidates, in many cases sealing off polling stations or filtering those allowed in. Some judges overseeing the vote reportedly left the polling stations in protest, taking the ballot boxes with them.Independent observers have reported attempts at intimidation and irregularities including vote-buying on the part of the ruling party. Although the Brotherhood does not have enough candidates to challenge President Hosni Mubarak’s control over parliament, it has marked considerable electoral success in previous rounds. The final round is scheduled for the 7th of December.