COMMENTS from Michael O'Leary highlight the need to cut Westminster's 'ridiculous' levels of Air Passenger Duty, the SNP said.

It followed comments from the Ryanair chief executive saying Prestwick Airport was "badly harmed" by APD.

The UK currently has one of the highest levels of APD in the world - which industry experts including Mr O'Leary say is damaging the economy.

As set out in Scotland's Future, the Scottish Government would cut APD levels by half after a Yes vote.