HONG KONG — Tens of thousands of Hong Kong residents, joined by a smattering of mainland Chinese, converged in central Victoria Park here on Tuesday to honor the 24th anniversary of the Tiananmen Square crackdown and vent their anger at a Chinese leadership that has increasingly signaled its intent to broaden its limited control over the territory.

Speakers shouted “down with the Communist Party” and “free elections for all citizens.”

Such protests are effectively banned in mainland China, creating a draw for the mainlanders who attended.

“I came because you can’t commemorate this day on the mainland,” said one, a former magazine editor who gave his name only as Li for self-protection. “Here you can soak up the democratic atmosphere.”