Protests around the world: Violent clashes hit Chile, Hong Kong, Lebanon, Spain

Chilean firefighters extinguish burning buses during clashes between protesters and the riot police in Santiago on October 19, 2019 /AFP

Demonstrators set fire to street signs and other objects during a protest against the government in Valparaiso, Chile on October 19, 2019 /Reuters

Lebanese protesters wave national flags as they take part in a third day of protests against tax increases and official corruption in the southern city of Sidon (Saida) on October 19, 2019 /AFP

A demonstrator, wearing a mask, takes part in an anti-government protest in downtown Beirut, Lebanon on October 19, 2019 /Reuters

Protesters hold banners reading in Catalan 'Freedom for politic prisoners!' during a pro-amnesty demonstration called by Madrid's Anti-repression Movement and demanding total amnesty and the defence of democratic rights and freedoms in Madrid on October 19, 2019 /AFP

A Catalan demonstrator throws a tear gas canister back to the riot police during Catalonia's general strike in Barcelona, Spain on October 18, 2019 /Reuters

An anti-government demonstrator is detained by police during a protest in Hong Kong, China on October 20, 2019 /Reuters

Riot police fire tear gas against protesters during a pro-democracy march in the Kowloon district in Hong Kong on October 20, 2019 /AFP