A Royal Australian Air Force (RAAF) AP-3C aircraft flew a sortie to the search area determined by RCC Australia yesterday.
A search area more than 3000 kilometres south-west of Perth continues to be reviewed by RCC Australia as further information becomes available.
Three merchant ships in the vicinity of the search area have responded to a broadcast to shipping issued by RCC Australia.
One merchant vessel has transited the area and a further two vessels are due to undertake a search and assist.
Three RAAF P-3 Orion aircraft will be available for tasking by RCC Australia today, with a fourth aircraft available on Thursday.
A New Zealand P-3 Orion and a United States Navy P-8 Poseidon aircraft are expected to join the search today.
The search area determined by RCC Australia is more than 600,000 square kilometres.
Search conditions are moderate in the search area.
AMSA cannot facilitate any interviews this morning.
Links to any images, vision or media materials will be updated via twitter handle @AMSA_News
Further updates will be issued when available.
Media enquiries: media@amsa.gov.au