BBC News: People in Pakistan have taken part in landmark national and provincial polls. The vote marks Pakistan’s first transition from one civilian government to another in its 66-year history. However election violence has claimed a number of lives. In the worst attack, 11 people were killed in a bombing on a political office in Karachi. Pakistan’s election commission is quoted as saying it has “been unable to carry out free and fair elections” in the country’s largest city, With queues remaining at many polling stations, voting was extended for an hour across the country, to 18:00 (13:00 GMT). Tens of thousands of troops are deployed at polling stations after the Pakistani Taliban threatened to carry out suicide attacks.