A woman in her 40s is in a critical condition in hospital after being stabbed in the back by a man in Aberdeen Road in Edmonton on Saturday evening. Three men were stabbed in the back in separate incidents between Saturday night and Sunday morning, also in north London. One of the male victims is in a critical condition in hospital. Police are treating the incidents as potentially linked. Report by Jonesia. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn