A teenager pleaded "help me, I've been stabbed" before collapsing in a pool of blood after he was knifed in a brawl in Whittington Park, Holloway. He was one of two youths, aged 15 and 16, knifed in a scuffle. Witnesses said they had been enjoying the heatwave when the trouble erupted. The older youth was stabbed in the stomach and was in a serious condition today. The second was stable.