Police say they are investigating the death of a 29 year old man at an address in Llanrug near Caernarfon.
North Wales Police say they called just after 4pm on Monday.
The circumstances of the incident are still being investigated and it has been referred to the North West Wales coroner and the Health and Safety Executive.
A post mortem is expected to be conducted today.
More top news
But clear skies remain in the south and west
Joshua Davies says he was running away from a gang when he fell from the fifty-foot bridge.
First Minister's Questions: the new term begins