All Nippon Airways has said it will cancel all Boeing 787 Dreamliner flights until at least the end of May.

The decision means a further 1,700 flights will be cancelled as Boeing seeks to return the plane to skies.

All Dreamliners with airlines around the world are presently grounded after a series of onboard incidents involving lithium ion batteries.

The latest decision from Japan-based ANA takes the total number of affected ANA Dreamliner flights to 3,600.

The carrier is the largest Dreamliner operator in the world, using 17 of the 50 aircraft in service around the world.

Investigations into the Dreamliner battery have so far proved inconclusive.