Deutsche Lufthansa AG cut its 2016 profit forecast after terrorist attacks and economic uncertainty sapped demand for European travel. The German carrier lowered the outlook to “below previous year” from “slightly above previous year” for adjusted earnings despite strong performance in the first half, according to a company statement Wednesday. Unit revenue in the passenger airline group will be “significantly weaker” in the third quarter, Lufthansa said. “Advance bookings, especially on long-haul routes to Europe, have declined significantly, in particular due to repeated terrorist attacks in Europe and to greater political and economic uncertainty,” the company said. “As of today, the executive board regards a complete recovery as not likely anymore.” The cut makes Lufthansa the third major European carrier to pare expectations, as demand weakens amid a string of terrorist attacks from Belgium to France. British Airways owner International Consolidated Airlines Group SA and EasyJet Plc lowered their forecasts after the U.K. voted to leave the European Union last month. Lufthansa’s adjusted earnings before interest and taxes rose 13 percent in the first six months to 529 million euros ($582 million), Lufthansa said, based on preliminary data. Revenue fell to 15 billion euros. The carrier said unit revenue is expected to fall by 8 to 9 percent in the second half after adjusting for currency effects. Lufthansa plans to report detailed results for the first half on Aug. 2. The Bloomberg U.S. Airlines Index dropped after Lufthansa’s announcement, falling 0.6 percent at 3:00 p.m. in New York. That reversed an earlier gain of as much as 1.6 percent.