A private jet carrying Brazilian presidential candidate Eduardo Campos has crashed, sources in his political party told Reuters.
The plane lost contact with air traffic control as it was preparing to land in Santos, Sao Paulo, according to an Air Force statement.
A police official in Santos said there were "certainly" fatalities in the crash, but could not provide any additional information.
The party source, who spoke on condition of anonymity, said Campos' running mate, Marina Silva, was not on board.
More top news
In an embarrassing setback for the president, Republicans failed to reach the number of votes to pass his new healthcare act into law.
It will feel pleasantly warm in the sunshine, with temperatures reaching 12 or 13 Celsius (54 to 55F).
Some of Britain's biggest stars of the stage and screen will be honoured at Buckingham Palace later today.