Chaos broke out at the Brickfields police station in Kuala Lumpur this morning as the police sprayed chemical-laced water at about 300 supporters of detained Hindraf leader P Uthayakumar. br The supporters were accompanying nine people representing nine states and a relative of Uthayakumar, who intended to lodge police reports alleging that Uthayakumar was denied proper medical attention for his ailment.