The US State Department has issued a "potential terrorist attacks" warning for Americans planning to travel to Europe for events such as the Euro 2016 football tournament, Sky News reported.

The travel alert, which expires on 31 August, made no mention of specific threats to Euro 2016 matches or other events, but warned US citizens to "exercise vigilance" and "avoid crowded places".

"The large number of tourists visiting Europe in the summer months will present greater targets for terrorists planning attacks in public locations, especially at large events," the alert said.

"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."

Source: MENA