Fumes from an apparent mixture of heroin and gasoline sickened eight British police officers during a drug raid, officials said. The officers, who had trouble breathing, were hospitalized and later released. The fumes were released when contents of a can were poured on a carpet as the officers were arresting three suspects, The Daily Telegraph reported. The chemical caused fits of vomiting. Three men, ages 21, 27 and 34, were arrested on suspicion of conspiracy to possess a controlled drug with intent to supply. The suspects also needed hospital treatment. Officers seized narcotics valued at $395,000 during the late Thursday raid, investigators said.