Crowded events, such as sports games, concerts, as well as aircraft and public transport, are reportedly the likely targets of the potential attacks.
Spain is also at risk as about 200 people who left the country to join Daesh in Syria and Iraq could return home after the terrorist group's defeat in the Middle East, alongside some of the 2,000 of the militants who could arrive in Spain from Morocco, according to the newspaper.
Daesh, which is outlawed in many countries including Russia, claimed responsibility for a number of attacks that hit various cities across Europe in the past year. In July, a truck drove into a large crowd celebrating Bastille Day in the French city of Nice, killing at least 86 people. Last November, Daesh carried out a series of terrorist attacks across Paris, claiming 130 lives and injuring over 350 people.
