COIMBATORE: A tanker truck carrying around 40,000 litres of ethanol overturned near JJ Nagar here on the Salem-Kochi National Highway on Saturday morning, spilling the chemical into the surrounding area.According to police, the accident occurred around 10am, when the 16-wheel tanker travelling from Thavanagiri to Kochi in Keralam went out of control and overturned in an open area alongside the road. Dongari, 46, a native of Karnataka, was behind the wheel at the time of the accident.When alerted, the Chettipalayam police rushed to the spot and initiated safety measures. Fire and rescue services personnel also arrived and carried out operations to prevent any untoward incident following the ethanol leakage.After an hour of efforts, fire and rescue services personnel completely stopped the ethanol leakage. The Chettipalayam police have registered a case and are investigating.