A plastic bag containing what appears to be materials used for doping has been found by police close to the venue of the European Athletics Championships in Gothenburg.

The bag was discovered in a bin on a street near the Ullevi Stadium, where the championships concluded on Sunday.

Swedish police said in a statement, reported by the BBC: "It contained what we believe is doping equipment, syringes and catheters.

"Another bag was found later which had equipment for blood transfusions."

Police released a photograph of a blue bag full of used syringes, needles, tubes and small bottles.

"Most of what has been found has been used," the statement added.

No suspect has been linked to the bags and an investigation of the contents is now under way.