(CNN) -- Brazilian presidential candidate Eduardo Campos was among those killed Wednesday morning in the crash of a small plane in Santos, Brazil, the country's state news outlet Agencia Brasil reported.
The exact number of people killed in the crash wasn't immediately known, but there were no survivors, Agencia Brasil reported, citing officials from Campos' Brazilian Socialist Party.
Campos, 49, was most recently the governor of Pernambuco state, and was a federal lawmaker from 1998 to 2003.
Eduardo Campos, presidential candidate and former governor of the state of Pernambuco, sits for a photograph after an interview in Sao Paulo, Brazil, on Thursday, April, 17, 2014.
The political figure, who was running in his first presidential election, was among the serious contenders, steady in third place in the polls at about 8%, according to pollster Datafolha. The two leading candidates are incumbent President Dilma Rousseff and center-right candidate Aecio Neves.The plane was a Cessna 560XL that had departed from Santos Dumont airport in Rio de Janeiro en route to Guaraja airport in Sao Paulo state, Agencia Brasil reported.
The plane's maintenance and inspection records were up to date, the state outlet reported.
As the plane prepared to land it swerved because of bad weather, and immediately the air traffic control tower lost contact with the plane, Agencia Brasil reported.
One witness, a pilot trainee, told CNN he heard a loud noise and saw the plane flying really low.
It was pitched down at 70 degrees, and "hit the ground like a rock," Matheus Giovannini said, adding that it appeared to have hit a house, too.
Campos was married, and had five children.