IMPERIAL, Pa. — Delta Air Lines is expanding its service to Paris this travel season despite recent terrorist events in the city that have seen a weakening of demand due to security concerns.

Christina Cassotis, the CEO of the Allegheny County Airport Authority, says the Paris service is “an important economic driver for our region, as well as a huge convenience for leisure travellers.”

Delta has offered seasonal flights from the Pittsburgh airport to Charles de Gaulle Airport since 2009. This year, the service will run seven days a week from May 1 and run through Oct. 29.

The Government of Canada has issued a travel advisory to exercise a high degree of caution in France. The website says “There is no nationwide advisory in effect for France. However, you should exercise a high degree of caution due to the current elevated threat of terrorism.”