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“The scenario is even worse this year: drier, and with less water,” Rabelo said from Corumba, a municipality in Mato Grosso do Sul state.

There was so much smoke in ��ǰ��ܳ���á – where the raid was launched from – that police helicopters were unable to fly and officers travelled by boat.

“The city is covered by a cloud of soot,” said Rogério Leite, the secretary of health in the Mato Grosso city of ��ǰ��ܳ���á.

The region’s main road, the BR-262, is a long thread of tarmac through the carpet of green, connecting the growing cities of Campo Grande and ��ǰ��ܳ���á, 430 miles apart.

Brazilian authorities said a Bolivian woman presented herself at the border city of Corumba.