British holidaymakers heading to France have been warned by the Foreign Office of a "high" terror alert in the country.
In the wake of the attack on Bastille Day celebrations in Nice last night, Brits already in the city have been advised to "follow the instructions of the French authorities" and to call the FO if they are concerned about any British national who may have been caught up in the attacks.
"Due to ongoing threats to France by Islamist terrorist groups, and recent French military intervention against Daesh [also known as Islamic State], the French government has warned the public to be especially vigilant and has reinforced its security measures," it added.
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At least 84 people died when a lorry ploughed through crowds on the city's beachfront during Bastille Day celebrations.
President Francois Hollande described it as a "terrorist" attack, although no group has yet claimed responsibility.
The Foreign Office says around 17 million British nationals visit France every year and most trips are trouble free. However, after last night's attack, Hollande said a state of emergency – due to expire on 26 July – would be extended for another three months.
This makes it easier for police to place potentially dangerous offenders under house arrest and disband groups found to be a threat to public order, but also means local authorities can implement curfews or prohibit movement of the general public in certain areas.
Nice airport was evacuated today after a suspicious package was found, but passengers were subsequently allowed back in and flights do not appear to have been greatly affected. Those preparing to travel to the city are advised to check the status of their flight before they leave home.
Passengers on easyJet wishing to cancel their flights into Nice are being offered refunds and British Airways has also said it is contacting customers to offer to change their flights.
"We'd encourage customers in Nice to get in touch with us if they want to make a change to their booking and we will do everything we can to help," said a BA spokesperson.
Both airlines expressed sympathy for the victims and their families.
