Arsenal has ramped up security ahead of tonight's game after a media outlet linked to IS allegedly issued a threat against all four Champion's League games. The UEFA insisted that this week’s Champions League quarter-final matches will all go ahead as planned despite the terror threat. A heavy police presence could be seen outside the Emirates stadium ahead of the game against Bayern Munich. Report by Kennedyl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn