The United States warned its citizens on Tuesday of possible summer terrorist attacks in Europe, saying targets could include the European soccer championship in France, although a State Department official said there was no specific threat information.
Concern about security in Europe has increased since the Nov. 13 attacks in Paris that left 130 people dead as well as the March 22 attacks in which two suicide bombers struck Brussels airport and a third the city's metro, killing 32.
"We are alerting U.S. citizens to the risk of potential terrorist attacks throughout Europe, targeting major events, tourist sites, restaurants, commercial centers and transportation," the U.S. State Department said in a travel alert that extends through Aug. 31.
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