Ricin is a naturally occurring protein, found in the castor oil plant, which is highly toxic. It is 6,000 times more poisonous than cyanide.

Letta said Angelino Alfano, secretary of Berlusconi's PDL party, would be Deputy Prime Minister and Interior Minister.

“I call upon the peaceful protesters to expel the criminals targeting military and police,” al-Maliki said in a statement.

32 players and former players have said they will take part in the match, including nine Brazilian World Cup winners.

An estimated 40,000 Cuban doctors, educators, sports trainers and other advisors and technicians are currently working in Venezuela.

Armenian grandmaster Levon Aronian will take part in Norway Chess 2013 tournament to be held in Stavanger from May 7 to 18.

"The goal of this attack is to weaken the government to realize our strategic plan to topple the regime," Gibril Adam said.

The idea came after a shocking massacre in Belgorod, southwest Russia, on Monday afternoon, which left six people dead.

Gunmen hit a different police station in Benghazi last week freeing a number of detainees, following a similar attack in Tripoli.