Hong Kong rallied more than four percent on Tuesday as developers and tech firms soared following a pledge by China's leaders to introduce measures to boost the economy, particularly the troubled property sector.

The Hang Seng Index soared 4.1 percent, or 766 points, to 19,434.

The Shanghai Composite Index jumped 2.1 percent, or 67 points, to 3,231, while the Shenzhen Composite Index climbed 2.2 percent, or 43 points, to 2,048. (AFP)