The French foreign ministry warned its citizens Wednesday about travelling to Britain because authorities in London see a "very high" risk of a terrorist attack on the country, DPA reported.
The warning comes in the context of several terrorism alerts raised by the United States and other countries about the growing threat of an attack in Europe.
In the warning posted on its web site, the ministry advises travellers to Britain "to be extremely vigilant on public transport and at the most popular tourist sites" in Britain.