At least 129 were killed in coordinated attacks, which included suicide bombers. Many more people were injured and some are in a critical condition.
"The advice of the Paris Police is currently to keep movement around town to a minimum. Systematic border control checks have been implemented at all entry points into France," the FCO said.
Tourist attractions such as Disneyland Paris have been closed and airlines are giving customers the opportunity to change flights.
“EasyJet’s thoughts are with the family and friends of the victims of the November 13 terrorist attacks in Paris," easyJet said.
"The safety and security of its passengers and crew is always easyJet’s highest priority. Any passengers who do not want to travel to and from Paris this weekend can request a free flight change to an alternative destination."
