The Islamic State threatens terrorist attacks in the Champions League quarterfinals: "Kill them all". Real Madrid will face Manchester City this Tuesday at the Santiago Bernabéu.

Atlético de Madrid will host Borussia Dortmund on Wednesday at the Cívitas Metropolitano. Arsenal and Bayern Munich will face each other at the Emirates Stadium in London. FC Barcelona will visit Paris Saint-Germain at the Parc des Princes in the French capital. Spain is at level 4 out of 5 of anti-terrorist alert.