July 3 (UPI) -- One assailant has been arrested after allegedly stabbing at least four people near a shopping center outside Helsinki, Finland, on Thursday, local media reported. It was not immediately clear how many people were injured at the scene , and the victims were attended to by emergency medical personnel. The Finnish broadcaster Yle reported that there was a large pool of blood visible in the street outside the shopping mall where the incident took place, and sanitation workers were