When two teenage boys went fishing from a river bank in Oxford, they didn't set out to catch a rifle.
But when Alex Weller and Josh Cooks fishing line snagged on a briefcase, they hauled it ashore and found exactly that.
The briefcase contained a rifle, a pistol and ammunition which has been described as a typical hit man's gun kit.
Detectives are now investigating whether the high-powered gun could be linked to a major crime.
More top news
Sunday's weather for the east with Philippa
Sunday's weather for the west with Philippa
More than 300,000 people have now signed a petition calling for tougher penalties for those who abuse animals.