More than 60 Brazilian members of congress from the opposition Worker's Party have formally changed their names. They have added the name 'Lula', after Luiz Inacio Lula da Silva was jailed last weekend.
Authorities say they have arrested four Congressional police agents posted inside Brazil's Senate for allegedly obstructing an investigation into lawmakers' suspected involvement in the corruption-kickback scheme at state-owned oil company Petrobras. Federal police said in a statement that those arrested Friday include Pedro Carvalho, head of the Senate police, which is a distinct agency.
Two further headaches for embattled Brazilian president Dilma Rousseff who in eight months of government has seen four ministers and two deputy ministers step down under serious suspicions of corruption.