Staff at state-run Petrobras (PETR4.SA) are aware of a potential plan to invade its Transpetro terminal located in the Maceio port in northeast Brazil.
The threat comes as Brazil braces for more protests by supporters of far-right former President Jair Bolsonaro, after mobs rampaged through public buildings in the counintry’s capital on 8 January.
Brazilian oil workers union, Federação Única dos Petroleiros (FUP), had reported this threat on 11 January.
The union said that people who identified with coup practices were behind the plan, which also involves invading a distribution centre owned by Vibra Energia (VBBR3.SA) in the same port with the aim of disrupting fuel supplies in the region.
The security team at the port has been reinforced and military police are working on the site, the union said in a statement.
Petróleo Brasileiro S.A., better known by the portmanteau Petrobras, is a state-owned Brazilian multinational corporation in the petroleum industry.