Afghan election set for run-off --- The Afghan presidential election will go to a second round, after no candidate reached the 50% needed for an outright win, preliminary results show. --- Former Foreign Minister Abdullah Abdullah won most votes with 44.9%. Former World Bank economist Ashraf Ghani came second with 31.5%. -- They are now expected to face a run-off vote on 28 May. -- Final official results are due to be announced on 14 May after a period for adjudication of complaints. -- The BBC's David Loyn in Kabul says there are increasing claims of fraud. - BBC, at: http://www.bbc.com/news/world-asia-27173423