A ceremony of hoisting the national flag was held at Tiananmen in Beijing on Sunday with tens of thousands of people attending.

Sports and folk games were held in various cities on Sunday.

An evening gala on the theme of "Song of Labor" celebrating May Day was held at the Great Hall of the People in Beijing on April 27.

On the occasion of May Day President Hu Jintao went round Tianjin City, congratulating working people on the day.