At least two people were injured in a violent attack in Vasteras in Sweden, local police said on Tuesday, adding that one person had been apprehended on the spot.
Police in a statement said a sharp object had been used in the attack but did not provide further detail.
Swedish daily Aftonbladet, citing unnamed sources, reported that the victims were stabbed with a knife.
Police said the attack took place in the central part of Vasteras, a town about 90 kilometres (56 miles) west of Stockholm.