Pastor Alan Keung covers his face with a gas mask after riot police fired rounds of tear gas during an anti-government protest in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY

Pastor Alan Keung stands amongst protesters and bystanders during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung washes the eyes of a pedestrian who was tear gassed during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY

Pastor Alan Keung stands next to riot police confronting protesters during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung talks to a young boy after his service at his chapel in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung prays with a first aid volunteer who asked Alan to do so during an anti-government protest in Hong Kong, China November 3, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY

Pastor Alan Keung helps to arrange his pupils to stand in a straight line during an activity after a prayer meeting on the rooftop of where his chapel is located in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung and first aid volunteers gesture that they are not protestors by raising their hands as riot police advance to disperse protesters during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY

Pastor Alan Keung pacifies a man arguing with protesters who blocked the road during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung covers his face with a gas mask after rounds of tear gas is fired during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung reacts after being tear gassed while helping pedestrians and protesters during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung comforts a woman who was tear gassed during an anti-government protest in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung and first aid volunteers walk through an alley in order to avoid road blocks during an anti-government protest in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung and first aid volunteers treat a pedestrian who was tear gassed during an anti-government protest in Hong Kong, China November 3, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung talks with a protester wearing a Halloween mask during an anti-government protest on Halloween in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung holds his safety helmet as he prepares to visit an anti-government protest site from his chapel in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung runs away from tear gas fired during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung pacifies a man who was arguing with protesters who blocked the road during an anti-government protest in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung prepares to visit an anti-government protest from his chapel in Hong Kong, China October 31, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung prepares to conduct a service at his chapel in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung eats a meal at a restaurant with his pupils before conducting a service in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Children pray during Pastor Alan Keung's service at his chapel in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Pastor Alan Keung talks on his mobile phone on the rooftop of his chapel as he prepares to visit an anti-government protest site in Hong Kong, China November 2, 2019. REUTERS/Kim Kyung-Hoon SEARCH "HONG KONG PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES