Xi Jinping warns Hong Kong over sovereignty 'red line' bbc.com

Chinese President Xi Jinping has warned against "impermissible" challenges to Beijing's authority over Hong Kong.
Mr Xi was speaking at the swearing-in of the territory's new leader Carrie Lam, as it marks 20 years since its handover to China from Britain.
He took part in a series of lavish events, including a flag-raising ceremony, amid tight police security.