Marina Silva chosen to run for president in Brazil

The Brazilian Socialist Party (PSB) has formally named the internationally-acclaimed environmental campaigner Marina Silva as its new presidential candidate, the BBC reported. 

Ms Silva replaces the late Eduardo Campos, who was killed in a plane crash last week.

She was Mr Campos's running mate and served as environment minister.

She is seen as a leading challenger to President Dilma Rousseff, who's seeking re-election in the 5 October poll.

"I will give the best I have in me," said Ms Silva, 56, after the announcement, which was widely expected.

PSB President Roberto Amaral told a news conference she had been chosen unanimously.

Congressman Beto Albuquerque was named the party's new vice presidential candidate.