However, on the evening of 5 November 2015, InterSky announced that they were forced to cease all operations immediately as the lessor of its fleet seized four of the airline's five aircraft - both ATR 72-600s and two Bombardier Dash 8 Q300s - over unpaid leasing charges on short notice. All four aircraft were returned to the lessor immediately, while the remaining one - which was owned by InterSky - operated the last flight from Zürich to Graz. Previously, a potential investor declined to financially support the plans to go into administration.