UK warns over "high" terrorism threat at Euro 2016 stadiums

Britain has warned football fans travelling to the Euro 2016 football championships in France that stadiums, fan zones and transport hubs "represent potential targets for terrorist attacks".

"There is a high threat from terrorism," the foreign ministry said in a travel advisory for supporters.

Stadiums and fan zones targeted

"During Euro 2016, stadiums, fan zones, venues broadcasting the tournament and transport hubs and links represent potential targets for terrorist attacks," it said.

"You should be vigilant at all times, especially in areas hosting Euro 2016 events and follow the advice of local French authorities," it added.

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Planned attack thwarted 

Ukraine said Monday it had arrested a suspected far-right French extremist who was allegedly planning to attack the Euro 2016, adding to security fears over Europe's showcase football tournament.

The 25-year-old man had a huge arsenal of weapons and was planning to attack a string of locations in his home country, Ukraine's security services said.

But Prime Minister David Cameron's spokeswoman told reporters the new advisory was "not a response to a new or specific threat or to yesterday's arrest".

"It's to provide further information on the risk of terrorism during the Euro 2016 tournament for fans. It's not a change in terms of the advice about whether or not to travel," she said.

She also said that more counter-terrorism officers would be deployed on trains to France and on Britain's borders but did not give further details.

The United States last week warned its citizens that the tournament and related events across France and Europe presented "potential targets for terrorists".

Threat not just in France

According to the warning, the threat concerns not just the French stadiums hosting matches, but also areas across the continent where fans will gather in numbers.

The Euro 2016 runs from June 10 to July 10.