Norwegian Cruise Line Holdings has joined many other passengership owners in pushing out their fleet suspensions once again to later dates amid the coronavirus pandemic.

The Frank Del Rio-led owner of 27 ships has extended lay-up of their entire fleet to 1 July, having previously set restart dates for 30 April and 10 May.

"Your safety is our No. 1 priority — both on and off our ships," New York-listed Norwegian said.