Nine people rescued from 16-strong crew of Indian and Sri Lankan nationals as search ongoing for others.
Cameroonian-flagged ship is alleged to have been working for Russia to transport the Ukrainian grain to the Middle East.
Organisations decry the ‘unacceptable situation’ of assaults by Yemeni group against vessels in the Red Sea.
The crew abandoned the coal carrier after it was struck by Houthi missiles, which started a fire, on June 12.