Ugandan police used rubber bullets, live rounds and tear gas to break up a protest by supporters of opposition presidential candidate Bobi Wine after he was arrested on Tuesday following the filing of his nomination papers, aides and witnesses said. At least 15 people were injured and 49 arrested in the clash at the home compound of Wine, 38, also a singer and musician who has parlayed his relative youth and upbringing in a slum into a popular following against 75-year-old President Yoweri Museveni. Wine, whose real name is Robert Kyagulanyi, aims to end Museveni's 34-year-old authoritarian grip on power that has made him Africa's third longest-ruling president.