China has warned the US to stay out of its internal affairs after commenting on what's thought to be Hong Kong's largest democracy rally in a decade.<br />Hundreds of thousands of people rallied for full electoral freedom on Tuesday, marking 17 years since Hong Kong was returned to China.<br />More than a hundred people are still in police custody after being arrested during a sit-in.<br />Al Jazeera's Adrian Brown reports from Hong Kong. <br />Subscribe to our channel http://bit.ly/AJSubscribe<br />Follow us on Twitter https://twitter.com/AJEnglish<br />Find us on Facebook https://www.facebook.com/aljazeera<br />Check our website http://www.aljazeera.com/
