US will issue travel warning for Americans in Europe

The US government is to issue a travel alert, warning its citizens to be vigilant while travelling in Europe because of the threat of an al-Qaeda commando-style attack.

US and UK officials have confirmed that updated guidance will be issued because of the current terror threat.

A UK official said the travel advisory would not be country-specific.

It would also not go as far as advising against travel to Europe, the official said.

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