PARIS — The November 13 terrorist attacks in Paris had reduced Air France-KLM’s turnover last month by about €70m, the Franco-Dutch airline group said on Monday.

However, the effect on bookings had largely tailed off during the past two weeks, it added.

"The negative impact of the Paris attacks on December revenues is estimated to be around €70m, with significant easing during the last two weeks. Booking trends in December were in line with a progressive recovery," the group said in a news release.

Total traffic last month for Air France, KLM and low-cost subsidiaries HOP! and Transavia, was 6.7-million passengers, which was "stable" compared with the previous month.

Seat occupancy fell 0.2% to 82.9%, it said.

Turnover in November had fallen by about €50m as a result of the attacks, Air France-KLM said last month.

The group said earlier this month it expected to return to profit this year after several years of losses. Annual results are scheduled to be announced next month.

The November attacks by jihadists on street cafes, a concert hall and the Stade de France national stadium left 130 dead and 350 injured.