An anti-government protester uses a bow during clashes with police outside Hong Kong Polytechnic University (PolyU), in Hong Kong, China, November 17, 2019. REUTERS/Athit Perawongmetha

HONG KONG (Reuters) - Hong Kong police said one of their media liaison officers was hit in the leg by an arrow on Sunday in a standoff with anti-government protesters around a barricaded university.

Activists hurled petrol bombs, some by catapult, and shot arrows with bows at police who fired tear gas and water cannon in response in the standoff at the Polytechnic University in Kowloon.