Thousands of protesters have taken to the streets in Hong Kong calling for democratic reforms.
A protest march by teachers is currently under way. It will be followed by another anti-government march in Hung Hom at 3.30pm and a pro-government rally at 5pm at Tamar Park in Admiralty.
The latest protests come days after Hong Kong airport cancelled all outbound flights after a mass sit-in by protesters.
The Chinese government has warned that, after two months of unrest, the situation is now showing "sprouts of terrorism".
Riot police again fired tear gas and rubber bullets last weekend - letting off rounds in an underground station and using "snatch squads" disguised as protesters to detain people.
Anger in the former British colony has grown over claims of police brutality, a planned extradition law and a call for more democracy.
Meanwhile, UN commissioner for human rights Michelle Bachelet has urged Hong Kong authorities to show restraint in dealing with the protesters.
In a statement, she said: "Officials can be seen firing tear gas canisters into crowded, enclosed areas and directly at individual protesters on multiple occasions, creating a considerable risk of death or serious injury."
Saturday's protests come as a warning of thunderstorms and rain was issued by the Hong Kong Observatory.
The Observatory warned of flooding in low-lying areas and where there was poor drainage.
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