Residents near Rugby Cement in the UK which was forced to halt controversial tyre-burning trials have demanded details of chemicals pumped out because of a breakdown. Rugby borough councillor Pat Wyatt is asking what came out of the chimney at Rugby Cement in Lawford Road, Rugby, on May 27 - the day the plant was proved to have released dangerously high emissions for three hours. Although the Environment Agency and Rugby Cement both confirmed the accident - which was caused by a blown fuse - was not of "major environmental significance," tyre-burning trials at the plant were halted. Environment officers have still not permitted the trials to resume. A Rugby Cement spokesman said a full report into the accident would be given at a monthly community forum meeting on August 16.