DUBAI: More than 2,500 Asian construction workers went on the rampage, smashing equipment and vehicles in protest over wages and working conditions.The riot at the Dubai Marina was the second violent protest by construction workers in two months.

Witnesses said workers employed by Al Ahmadiah Contracting company demonstrated for more than four hours, clashing with riot police and smashing vehicles and machinery at the waterfront site, which includes residential towers, outdoor cafes and a marina.

Three workers were arrested.

Last month, workers rioted at the site of a building that is intended to be the world's tallest skyscraper, smashing cars and offices. It was estimated that the damage would cost $1 million (BD376,000) to repair.