A woman in her 20s is believed to have been stabbed in the chest on a busy street in Islington, north London on Saturday morning. A witness said he heard a woman screaming and saw two men with a blade on Caledonian Road. Part of the street was in lockdown with cordons in place and traffic diverted following the attack at around 10.20am. Report by Jonesia. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn