Hong Kong's highest court freed three young pro-democracy activists on Tuesday, overturning their prison sentences for unlawful assembly.<br /> Joshua Wong, Nathan Law and Alex Chow had been convicted for leading the so-called "Umbrella Movement" demonstrations in 2014, which were protesting against a more authoritarian China. <br />They were initially given handed community service terms, but the government in Hong Kong controversially appealed for harsher punishment, sparking outrage among rights groups. <br />Hong Kong's Court of Final Appeal eventually sided with the three activists, but the court's chief justice warned of stricter penalties, including imprisonment, for future offenses relating to illegal protests. <br />