Turkey said on Thursday it would stop keeping hundreds of thousands of asylum seekers in its territory after an air strike on Idlib in neighbouring Syria killed 33 Turkish soldiers.
Police said more than 300 students and police officers were treated in hospitals for injuries suffered in a similar protest in the same area the previous day.
A large group of mostly young protesters marched down the middle of Hennessey Road, a main shopping drag in the Causeway Bay area, as a rally was held in nearby Victoria Park.
Hong Kong riot police fired tear gas at a university campus on Tuesday and residents of the Asian financial centre struggled to get to work as territory-wide transport disruptions wreaked commuter havoc
Activists have pledged to maintain the momentum of the movement that has roiled the China-ruled territory for nearly six months.
During a ceremony in Santiago, Pinera said that 30 years of democratic rule in Chile had been a "fertile" period that dragged eight million Chileans out of poverty.
Duque, a conservative who is deeply unpopular 18 months after his election, had proposed the talks on Friday in response to nationwide protests a day earlier that descended into violence, leaving three dead.
Security forces fired tear gas amid confrontations in central Beirut that went into Monday morning between Hezbollah supporters and demonstrators protesting against Lebanon’s political elite.
Some 2,000 people, mostly women, took part in the march to mark the UN-backed International Day for Eliminating Violence against Women.