European Council head Donald Tusk will be questioned again next spring by a special Polish parliamentary commission probing a notorious investment scam.
Surveys showed Labour's Muscat was likely to win a second, five-year term.
Romania's constitutional court has upheld a law preventing people with convictions from serving as ministers, a victory for the country's anti-corruption fight.
Martin Schulz's time as European Parliament president could become the subject of a probe by EU's anti-fraud office it emerged on Thursday.
Former President Luiz Inacio Lula da Silva, known to Brazilians simply as Lula, is topping polls for next year's presidential race and traveling the country to make the case that he can bring the boom times back to Latin America's largest nation.
A Romanian court has ruled that the speaker of the Senate, accused of making false statements in a property fraud case, can go on trial.
South Africa's parliament descended into chaos as opposition politicians denounced President Jacob Zuma as a "scoundrel" and "rotten to the core" because of corruption allegations and then brawled with guards who dragged them out of the chamber.
Romania's Social Democrat-led government easily survived a no-confidence motion in parliament on Wednesday, three days after mass street protests forced it into an embarrassing U-turn over a graft decree.
The protests so far have been largely peaceful, even festive. Parents brought young children and large pets, while volunteers distributed fresh-baked sweets to kids bundled up in wool hats and winter wear.
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