text: A Turkish teenager returned home from work to find his entire family were dead from suspected food poisoning. Abdulkadir Zeyat, 45, his 43-year-old wife Antika, and their six children were all discovered at their house in the village of Alintepe in the country's eastern Agri Province. Turkish authorities believe the family, which included siblings as young as three-years-old, died of  food poisoning. Kemal Zeyat, 19, had returned from work to his family home to find his six younger siblings (two of whom are pictured and his parents were dead . Mr and Mrs Zeyat, and six of their children (one of whom is pictured) are thought to have died from food poisoning or exposure to poisonous gas from a gas cylinder used by the family for lightning purposes . Other theories suggested that the tragic deaths may have been down to a possible poisonous gas leak from a cylinder they kept for lighting. purposes. The only survivor was the couple's eldest son, Kemal Zeyat, 19, who had been out at work in the north-western city of Istanbul. He is now receiving counselling to try to come to terms with the devastating loss. Tragically, father Mr Zeyat - who would normally have been working away from home - had  popped home to see his family when he too became a victim of the gas leak or food poisoning and died. The bodies of the family were found at the Turkish home (pictured being attended by police) by neighbours who became concerned after they noticed the house had been unusually quiet . Friends and neighbours called an ambulance but the family was pronounced dead at the scene. Kemal is now receiving counselling for the tragedy . The shocking discovery was made by the Zeyat family's neighbours. Residents nearby had been concerned after they noticed the house and yard - usually filled with children laughing and playing - was eerily silent. When they went to check if everything was ok, they discovered the bodies of the children, aged between 3 and 18 years old, and of the parents. Neighbour Ates Demir, 43, said: 'Nobody answered the door, so we broke it down. They looked so peaceful, lying there as if they were asleep, but they didn't wake up and we couldn't see any signs of breathing. 'We called an ambulance but all they could do was to confirm everyone was dead.' An investigation is currently under way into the cause of their deaths, according to village head Idris Ceri, 59. The bodies have been taken to Doğubayazit State Hospital's morgue for autopsy.
target: Abdulkadir Zeyat, wife Antika, and six children were discovered at home .
  Authorities suspect food poisoning or a gas leak for their tragic deaths .
  Neighbours became concerned when they noticed  house was eerily quiet .
  Only survivor was couple's eldest son Kemal Zeyat who'd been out at work .