Handout photo shows the Cidade de Sao Mateus, a floating production, storage and offloading (FPSO) ship that was contracted to Petrobras, pictured in Sao Mateus in Espirito Santo state

The Cidade de Sao Mateus, a floating production, storage and offloading (FPSO) ship that was contracted to Petrobras is pictured in Sao Mateus in Espirito Santo state in this February 12, 2015 handout picture provided by the Brazilian Navy. Five people were killed and four are missing following an explosion a day earlier in a Brazilian offshore oil and natural gas field run by Petroleo Brasileiro SA (Petrobras), said Norway’s BW Offshore Ltd, which owns the production ship on which the accident occurred. The explosion occurred after a natural gas leak on the Cidade de Sao Mateus. REUTERS/Brazilian Navy/Handout via Reuters (BRAZIL – Tags: ENERGY BUSINESS DISASTER MARITIME) ATTENTION EDITORS – THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO SALES. NO ARCHIVES