An anti-government protester walks past a burning barrier outside Mong Kok MTR station during a protest in Hong Kong, China October 27, 2019.

Police officers disperse protesters during an anti-government protest in Hong Kong, China October 27, 2019.

A journalist reacts after being hit with tears gas during an anti-government protest at Mong Kok in Hong Kong, China October 27, 2019.

An anti-government throws a Molotov coctail during a protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

A riot police officer fires a tear gas canister toward anti-government demonstrators during a protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

A pedestrian argues with riot police as he was asked to check his bag during an anti-government protest in Hong Kong, China October 27, 2019.

A firefighter extinguishes fire burning at an entrance to Mong Kok MTR Station during anti-government protests in Hong Kong, China October 27, 2019.

A first aid volunteer kicks a tear gas canister during an anti-government protest at Mong Kok in Hong Kong, China October 27, 2019.

Police officers react during an anti-government protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

A member of the press receives medical attention affected by the tear gas during an anti-government protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

Police officers react during an anti-government protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

Protesters runs away as riot policemen advance to disperse them during an anti-government protest in Hong Kong, China October 27, 2019.

An Anti-government demonstrator throws a bottle of water as he is seen among the tear gas during a protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

A demonstrator tries to catch a tear gas canister to riot police during an anti-government protest in Hong Kong, China October 27, 2019.

An anti-government protester is detained by riot police during a protest at Mong Kok in Hong Kong, China October 27, 2019.

Police officers detain an anti-government demonstrator during a protest in Hong Kong's tourism district of Tsim Sha Tsui, China October 27, 2019.

Riot police push an anti-government protester during a protest at Mong Kok in Hong Kong, China October 27, 2019.