Ninety-six offshore workers remained missing on Tuesday as the Indian Navy and other agencies continued search and rescue operations after Cyclone Tauktae struck an Oil & Natural Gas Corporation oilfield asset offshore India.

Rescue efforts have so far saved 177 personnel who were on board Afcons’ barge Papaa-305 that capsized at the Mumbai High asset in the Arabian Sea offshore India’s west coast after being battered the cyclone.

The barge had 273 people on board when disaster struck on Monday.

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All 202 crew on board Afcons’ barge Support Station 3 have been rescued, although unconfirmed media reports claim this vessel remains adrift.

Also, all 137 crew that were on board the contractor’s barge Gal Constructor, which ran aground, are now safe and accounted for following rescue efforts from the Indian Navy and Indian Coast Guard.

There were no ONGC employees on any of the three barges, according to local media reports.

Meanwhile, Indian Navy vessel INS Talwar is en route to assist ONGC’s drillship Sagar Bhushan, which has 101 personnel on board. The drillship is understood to be still adrift, with the last reported location 50 nautical miles south-east of Pipavav Port in Gujarat.

Family members are taking to social media for news of personnel on the drillship, saying that there has been no communication from the unit since Monday afternoon.

Mumbai High operator, state-owned ONGC, has been directing all enquiries to Afcons support helpline.

Afcons, which owns the three barges, has yet to respond to Upstream’s request for comment on the incident.

Cyclone Tauktae, which has claimed at least 20 lives across India’s western states, has now been downgraded to storm status.