Petrobras begins emergency drill in Foz do Amazonas basin

The drill started on Sunday at 18:10 (21:10 GMT), Petrobras said in the statement. Brazil's environmental agency Ibama did not immediately respond to a request for comment.

The exercise is expected to involve more than 400 people, as well as logistical resources such as large vessels, helicopters, and a drilling rig, which will be positioned at the site where the well is to be drilled, in the deep waters of Amapa state.