A father has discovered the bodies of his children and four other teenagers, in a shed in the German town of Arnstein in Bavaria on Sunday .
The father according to reports, Â had gone in search of his children who had been at the hut to celebrate his daughter’s 18th birthday the previous day.
As he hadn’t heard from his children by morning, the father went to the site – which belongs to the family – to check if everything was alright.
He found the bodies of his children and their friends in the hut, police said, and called emergency services. The fire brigade and a physician were rushed to the site, but the teenagers were already dead.
Police authorities in the Lower Franconia district, east of Frankfurt said  the cause of death was unclear, but there was no evidence of a violent crime.
In the building there was a wood-fired heater that had previously been lit, leaving open the possibility that carbon monoxide poisoning could have killed the youths.
