Hong Kong, Sept. 22 -- Protesters in Hong Kong threw gasoline bombs and police fired tear gas Saturday in renewed clashes over anti-government grievances.

Reporters saw at least one person arrested after violence erupted following an afternoon march by several thousand people in Tuen Mun, a district in the northwest of the Chinese territory.

Hong Kong is in the fourth month of sometimes violent protests that occur every weekend. They started with opposition to a proposed extradition law and have expanded to include demands for greater democracy.

Most protesters in Tuen Mun were peaceful but some threw gasoline bombs and bricks toward police who faced them down the street. They appeared to fall short of the police and there was no indic...