Counter terrorist police have written to Premier League clubs to urge them to be alert and review safety procedures after terrorist groups called for attacks against European football stadiums.
Officers have asked each side to ensure they focus on ‘readiness and response plans’ at their home venues.
Anonymous supporters of Islamic terror group ISIS issued a threat ahead of the quarter-finals of the Champions League.
A social media post published by a pro-ISIS media outlet showed graphic imagery of a balaclava-wearing gunman with the message ‘Kill them all’.
The post listed Arsenal’s Emirates Stadium, Paris’s Parc de Princes and Real Madrid’s Bernabeu as targets.
A media channel linked to ISIS shared a post that listed this week’s four Champions League venues alongside the message ‘kill them all’ on Monday night
Security was increased at each venue following the threat to the Champions League matches
Mail Sport understands counter-terrorist officers have now contacted each top-flight club
Security was increased at each match, and Mail Sport understands that the counter-terrorist officers have now contacted each top-flight club.
Insiders have disclosed that a large number of clubs are currently carrying out reviews.
In the message, the National Counter Terrorism Security Office (NaCTSO) calls on clubs to ‘be alert, not alarmed’.
Sides are reminded that the UK threat remains at ‘substantial’, meaning an attack it likely.
Staff and members of the public are called on to remain vigilant and report anything that does not look right to police or security staff.
The memo also calls on clubs to make sure they have plans in place in the event of such an attack.
As Mail Sport previously reported, clubs were already on alert over the Easter period following the recent terrorist attack at a concert hall in Russia.
