Hong Kong police arrest over 20 protesters in new scuffles

A man is detained by police during street protests in Hong Kong on Saturday, Aug. 3, 2019. Hong Kong protesters removed a Chinese national flag from i

A man is detained by police during street protests in Hong Kong on Saturday, Aug. 3, 2019. Hong Kong protesters removed a Chinese national flag from i

A woman shouts at a police officer in Wong Tai Sin district in Hong Kong during the early hours of Sunday, Aug. 4, 2019. Protesters and authorities cl

A woman shouts at a police officer in Wong Tai Sin district in Hong Kong during the early hours of Sunday, Aug. 4, 2019. Protesters and authorities cl

A woman confronts riot police in Wong Tai Sin district in Hong Kong during the early hours of Sunday, Aug. 4, 2019. Protesters and authorities clashed

A woman confronts riot police in Wong Tai Sin district in Hong Kong during the early hours of Sunday, Aug. 4, 2019. Protesters and authorities clashed

A protester stands in the midst of tear gas during confrontation with police in Hong Kong during the early hours of Sunday, Aug. 4, 2019. Hong Kong pr

A protester stands in the midst of tear gas during confrontation with police in Hong Kong during the early hours of Sunday, Aug. 4, 2019. Hong Kong pr

Dustbins are set on fire during a confrontation between protesters and police in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clash

Dustbins are set on fire during a confrontation between protesters and police in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clash

Police protect a police vehicle in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong again

Police protect a police vehicle in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong again

Riot police move into position in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong again

Riot police move into position in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong again

An umbrella is thrown at riot police during a confrontation in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authoritie

An umbrella is thrown at riot police during a confrontation in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authoritie

Police form up against journalists and protesters gathered in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities

Police form up against journalists and protesters gathered in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities

Police fire tear gas into a crowd in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong aga

Police fire tear gas into a crowd in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong aga

Police fire tear gas into a crowd in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong aga

Police fire tear gas into a crowd in Wong Tai Sin district in Hong Kong on Saturday, Aug. 3, 2019. Protesters and authorities clashed in Hong Kong aga

A protester pours water on a tear gas canister during a confrontation with police in Hong Kong on Saturday, Aug. 3, 2019. Hong Kong protesters removed

A protester pours water on a tear gas canister during a confrontation with police in Hong Kong on Saturday, Aug. 3, 2019. Hong Kong protesters removed

Protesters huddle behind barriers and use laser beams to shine at riot police during confrontation in Tsim Sha Tsui in Hong Kong on Saturday, Aug. 3,

Protesters huddle behind barriers and use laser beams to shine at riot police during confrontation in Tsim Sha Tsui in Hong Kong on Saturday, Aug. 3,

HONG KONG (AP) — Hong Kong police have arrested more than 20 people for unlawful assembly and assault after confrontations between protesters and authorities continued deep into the night.

Police say some violent protesters hurled petrol bombs, bricks, glass bottles and other objects at officers and refused to disperse at the pre-approved location on Saturday.

A peaceful pro-democracy rally devolved after protesters ignored police appeals to stick to the designated route, instead splintering off to various locations across Hong Kong's northern Kowloon area. Some blocked streets and a major tunnel while others surrounded two different police stations, damaging vehicles parked inside one lot.

Hong Kong has been rocked by nearly two months of mass demonstrations calling for greater democratic rights and government accountability.

Fresh rallies are expected Sunday ahead of a general strike Monday.