This was reported by CNN Brasil with reference to the Brazilian Navy.
It is reported that the ship left the city of Recife, located on the island of Itamaraca in the Atlantic Ocean, on the evening of September 14 and sank on the night of September 15. The causes of the incident are being investigated.
According to the Brazilian Navy, there were nine people on the ship, four of them were rescued, and five more crew members are being searched, reports tass.ru.
Brazilian authorities have notified the vessels in the area of the incident so that they can assist in the search for people.