London, Sep 24: Six people were injured in a suspected acid attack in London, according to the Metropolitan Police. The police were called to Stratford Centre at 8 p.m. on Saturday following an "altercation" between two groups of males where a noxious substance was thrown, reports the BBC. The injuries were "not life threatening or life changing", the London Ambulance Service said. Out of the six injured, three were taken to a hospital. A 15-year-old boy has been arrested on suspicion of grievous bodily harm. Those reported injured were believed to be in a number of different locations, sparking initial fears that people had been sprayed at random. A Met Police official said: "I would like to be very clear concerning this incident. "What initially may have been perceived as a number of random attacks has, on closer inspection, been found to be one incident involving two groups of males. "This incident is not being treated as terror-related."