The Hong Kong police announced on Monday that 420 demonstrators had been arrested since 9 June this year.
There would also have been fired tear gas a thousand times and 160 rubber bullets fired since 9 June.
The arrests and the use of rubber bullets and tear gas are a response to months of protests in Hong Kong.
In the beginning there was mainly demonstration by people who were angry about an extradition treaty with China. This treaty has since been declared dead by Lam's government.
The protests are now focused on the influence of China in general. In addition, there is great dissatisfaction with the violence that the police used in previous demonstrations.
68Hong Kong protesters harass police station
Hong Kong leader condemned ongoing protests
Carrie Lam, the head of the Hong Kong local executive, has strongly criticized the protests in the region.
In a press conference, Lam spoke of an "extremely dangerous situation". She also stated that the demonstrators "are trying to destroy Hong Kong".
Tens of thousands of people took to the streets again on Monday to demonstrate. The demonstration has major consequences for (air) traffic in Hong Kong. For example, 150 flights have already been canceled from Hong Kong International Airport and public transport is not running.
See also: This is what we know about the unrest in Hong Kong
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