The incident occurred outside Morrisons Daily, on Hydean Way, at around 7pm on Friday (July 31). It was reported that a group of males attacked a man and that one of them had been seen with a knife. Police, including armed officers, rushed to the scene and a man, 20, from Stevenage was rushed to hospital with suspected stab wounds. A 16-year-old boy from Knebworth was arrested on suspicion of grievous bodily harm and later released on police bail. Hertfordshire Police confirmed another boy, 16, from Bedfordshire, was arrested on suspicion of wounding with intent on Tuesday (August 4).