Fears for airlines if travel restrictions stretch beyond July 

Head of the International Air Transport Association Willie Walsh said this is the 'most challenging crisis the airline industry has ever faced'.

Many airlines will struggle to stay in business if international travel does not resume by July, an Oireachtas committee has heard.

The aviation sector has largely been curtailed globally to prevent the spread of Covid-19, though work is currently being undertaken about how best to open the industry safely.