Allegations of massive fraud during May’s local elections in Burundi have cast a shadow over the country's democratic transition, prompting international calls for compromise rather than confrontation. Attributing the ruling CNDD-FDD’s landslide victory to ballot-box stuffing, vote-buying with state resources, the illegal use of proxies and a lack of secrecy in some polling stations, 13 opposition parties have announced a boycott of the 28 June presidential race, leaving President Pierre Nkurunziza as the only runner.