The Foreign and Commonwealth Office has updated the terrorism section of its travel advice for France.
The British government announced on Wednesday that its French counterpart has confirmed that security measures will be “stepped up” over the Christmas and New Year period.
Areas of focus will be places of worship and markets.
The FCO’s advice stipulates that there is a high threat of terrorism in France following “high profile attacks” – most recently the November 13 attacks at multiple sites across Paris which killed 130 and injured hundreds more.
“Due to ongoing threats to France by Islamist terrorist groups, and recent French military intervention against Daesh (formerly referred to as ISIL), the French government has warned the public to be extra vigilant and reinforced its own domestic and overseas security measures,” the FCO website reads.
The body has also emphasised that those concerned about the ongoing migrant situation in Calais wishing to make a donation “should give to registered, experienced humanitarian charity in order to best help migrants and ensure personal safety”.