Brazil’s environmental protection agency has fined U.S. oil supermajor Chevron an additional 10 million reais (some $5.3 million), saying the company lacked an emergency plan for coping with accidents such as the Nov. 8 oil spill off the coast of Rio de Janeiro state.

The agency, known as Ibama, accused the company of breaching the terms of its environmental license for the Frade oil field, where the oil spill occurred, the official Agencia Brasil news agency said.

According to the agency, the company’s emergency vessels lacked specialized equipment and were therefore late in responding to the mishap.