Chennai: Six persons died of asphyxiation near here on Tuesday within minutes after inhaling toxic gas that emanated from a septic tank, police said.
According to the police, Krishnamurthy in Sriperumbudur town engaged a truck to clear the septic tank.
But Krishnamurthy slipped into the tank. Hearing his shouts, one of his sons tried to help him but he too died.
Krishnamurhty's other son and then three others who then tried to rescue the man died after inhaling the toxic gas.
