A post-mortem has failed to reveal the cause of death of a seafarer who was found washed ashore on a Vanuatu beach on 11 April.

Initial tests showed the man from the BW Epic Kosan (BWEK) 3,678-cbm LPG carrier Inge Kosan (built 2011) had Covid-19, prompting a lockdown on the Pacific island.

But the Singapore shipowner said the latest examination had proved "inconclusive".