Detectives are investigating the circumstances which led to four people sustaining critical injuries at Brixton O2 Academy on Thursday night. Police had been called to the venue on Stockwell Road at around 9.35pm following reports that a large number of people were attempting to force entry. Officers found a number of people with “injuries believed to have been caused by crushing”. Report by Patelr. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn