A blast struck the Petrobras chartered Cidade de Sao Mateus yesterday 120km from the Brazilian coast, with four people remaining missing today. 

Arnet said in a statement: “This is a tragic day, and our primary focus now is on the crew and their families.

“We cannot rest until the last four of our men are found.

“We express our gratitude to Petrobras and the Brazilian authorities for the tireless efforts in this time and wish to thank our peers and partners for their support."

There