Eduardo Campos, Brazilian presidential candidate, died today in a plane crash, on the way to the city of Santos, GloboNews TV channel reported.
Campos was traveling in a Cessna 560XL, which collapsed during a landing maneuver.
TV footage showed smoke rising from the crash site.
One source of his Socialist Party (PSB) said that his vice-presidential candidate, Marina Silva, was not aboard the plane.
Campos appeared third in the polls for presidential elections that will take place in October.