Democracy leaders mispronounced China as "Shina," an archaic and derogatory name for the country.
Labor lawmakers say the parliament should legislate on the subject.
Joshua Wong's supporters blame Chinese interference for the action.
Rivals claim foul play with blatant ballot stuffing caught on camera.
At least four radical leaders win seats in Legislative Council after a record voter turnout on Sunday.
Tensions escalated in the Korean peninsula after a North Korea diplomat defected to Seoul last week.
Leaders expected to hold discussion over a contentious Chinese-invested hydropower plant in Myanmar.
The 82-year-old monarch said his declining health might make it difficult for him to carry out his duties.
The Philippine president, who is on a three-day visit to Japan, said Manila may conduct naval drills with Tokyo.
The fallout of an uncertain outcome was visible, with the Australian dollar dipping in early trade on Monday.
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