Brazilian President Dilma Rousseff has cancelled all election campaign activities for three days after the death of opposition candidate Eduardo Campos on Wednesday.
Campos’s private jet crashed in bad weather as it was preparing to land in the coastal city of Santos, killing all seven people on-board.
Local television images showed smoke billowing from the crash site, a residential area of Santos.
A party source said Campos’s running mate, Marina Silva, was not on-board the plane.
Campos, 49, was in third place in recent polls with the support of about ten percent of voters.
Brazil’s presidential election is set to take place on October 5.