American tourists thinking of travelling to Europe this summer have been warned they may be at risk of terror attacks across the continent. The broad warning by the U.S. State Department applies to the whole of the continent for the next three months, and tells tourists to be wary of major events, city centres, restaurants and public transport. The Times reports that two big events singled out are the European Championship football tournament in France and World Youth Day 2016, the Catholic youth event in Krakow, Poland, with the warning that large numbers of people gathered in one place would present “greater targets for terrorists planning attacks in public locations”. It event raises the prospect of coordinated attacks across the continent. “Euro Cup stadiums, fan zones and unaffiliated entertainment venues broadcasting the tournaments in France and across Europe represent potential targets for terrorists, as do other large-scale sporting events and public gathering places throughout Europe,” the advice says. Nearly three million Americans visit Britain every year, according to Visit Britain, with almost 12 million visiting the European continent. Raffaello Pantucci, director of international security studies at the Royal United Services Institute, said: “I think it reflects the reality of the