Oct 1 0600 UTC UPDATE: On Sep 30 2 bodies were recovered by MT NAVIG8 GUARD (IMO 9833670), later transferred to French Navy ship, understood frigate VENTOSE. Frigate and her helicopter said to reach SAR area by morning Oct 1. Ships still engaged in SAR can be seen on AIS screenshot. Also deployed French Air Force plane and USCG Hercules plane.
In full: http://maritimebulletin.net/2019/09/28/bourbon-offshore-tug-reportedly-sank-3-rescued-11-probably-missing-or-dead/