The biggest rally is expected to take place on Sunday on the main island.
The series of demonstrations has been widely viewed as a test of how Mnangagwa, who has so far this year failed to make good on promises of political and economic reform, responds to dissent in a country tainted by a long history of repression.
With public mobile, landline telephone and internet connections still severed by the authorities in most of India-administered Jammu and Kashmir, many are still struggling to make contact with relatives to plan their Eid al Adha holiday.
Police and protesters clash as yet another day of protest marches in Hong Kong turned into a confrontation between police and activists.
In recent weeks, thousands have attended street protests calling for free and fair elections after the exclusion of several opposition figures from local Moscow polls next month.
In its harshest warning yet Beijing says the immense strength of the central government should not be underestimated as police in the semi-autonomous city announced they had arrested 148 people in connection with Monday's violence.
A wave of protests is planned across Hong Kong this weekend, along with a mass strike on Monday across sectors such as transport, schools and business that could bring the city to a standstill.
Police fired repeated rounds of tear gas at the crowds in Yuen Long after tense standoffs with protesters, some of whom were throwing projectiles at police and had surrounded a police van.
Main opposition parties accuse Prime MInister Imran Khan of failing to tackle the ailing economy and silencing his opponents.
Hong Kong witnessed another huge anti-government march with seemingly no end in sight to the turmoil engulfing the finance hub, sparked by years of rising anger over Beijing's rule.
Violence broke out again on Sunday night after a huge march in front of a train station which links Hong Kong to mainland China.
France broke a new heat record with temperatures hitting 45.9 degrees Celsius over the weekend. Young Extinction Rebellion climate activists protesting in Paris under harsh weather conditions were sprayed by police forces with tear gas.
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