Hong Kong, Oct. 20 -- A man distributing leaflets near a wall with pro-democracy messages was stabbed and wounded, as Hong Kong anti-government protesters prepared to hold an unauthorized march Sunday to press their demands.

Police said they arrested a 22-year-old man Saturday in connection with the knife attack that wounded a 19-year-old.

On Wednesday, a leader of the nearly 5-month-old pro-democracy movement, Jimmy Sham, was attacked by assailants wielding hammers and knives as the unrest rocking semi-autonomous Hong Kong turns increasingly violent.

Later Saturday, supporters waving U.S. and British flags held a prayer rally to call for outside help for their cause. The protest march is planned for Sunday, with organizers vowing to h...