Ex-President appointment blocks by judge

A Brazilian judge has blocked the appointment of ex-President Luiz Inacio Lula da Silva as chief of staff to his successor, Dilma Rousseff, just hours after he was sworn in.

The judge's injunction said there was a risk a federal investigation could be derailed if Lula was a minister.
In Brazil, cabinet members can only be investigated by the Supreme Court, not by federal courts.
Lula is under investigation in connection with a corruption scandal.
The government said it would appeal against the decision.

Legal battle

Prosecutors filed charges against Lula last week accusing him of money laundering and fraud, which he has denied.
Lula's nomination as chief of staff has divided Brazilians.
Some said it was a move to shield him from prosecution while others welcomed his return to active politics.
Ahead of his swearing-in ceremony, groups of supporters and opponents of the government clashed outside the presidential palace.
The ceremony itself was interrupted by a protester who cried "Shame!".
The protester was drowned out by supporters of the governing Workers' Party, who shouted pro-government slogans and Lula's name.
During the swearing-in ceremony, President Rousseff praised Lula, who she said was "not just a great politician, but a great friend and comrade of many battles".
"We've always stood side by side," she said.
A visibly angry Ms Rousseff then criticized federal Judge Sergio Moro, who is leading the investigation into a massive corruption scandal dubbed Operation Car Wash.
On Wednesday, Judge Moro made public a taped phone conversation between President Rousseff and Lula which has been interpreted by some to show that Lula was given the post of chief of staff to shield him from prosecution.