The Islamic State, ISIS, has threatened to launch terrorist attacks on Champions League games this week, the Daily Mail reports.

The Met has confirmed that it is “aware” of the apparent threat by ISIS.

Also, authorities in Madrid say they are “on alert”.

The Al Azaim Foundation, a media channel that is responsible for spreading messages from ISIS, threatened an attack on all four venues for this week’s quarter-finals.

The group shared an image threatening to attack the Parc des Princes, the Santiago Bernabeu, the Metropolitan and the Emirates – which will host Arsenal v Bayern Munich tonight – with a message reading: “Kill them all.”

The authorities in Madrid have activated all of their “response systems” following the supposed terrorist threat, according to reports in Spain.

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