Main news of April 11

A roundup of what has happened in the past 24 hours

* The mourning procession with the body of Polish President Lech Kaczynski who died in an air crash arrived at the presidential palace as tens of thousands of Poles lined the streets to pay last tribute

* Jaroslaw Kaczynski, the twin brother of the late Polish president, identified the bodies of Lech Kaczynski and his wife Maria

* Russian Prime Minister Vladimir Putin said Polish president's plane crash in west Russia is a tragedy not only for Poland but for Russia as well

* Overthrown Kyrgyz president Kurmanbek Bakiyev who fled Kyrgyzstan's capital Bishkek following mass riots said Sunday he feels personal responsibility for the unrests that left over 80 killed

* The Polish plane crash near Smolensk in west Russia that killed President Lech Kaczynski, his wife and other top officials was not caused by any technical problems with the jet, Russian investigators said

* Overthrown Kyrgyz President Kurmanbek Bakiyev urged the United Nations on Sunday to send its peacekeepers to the Central Asian republic to prevent further riots following the recent uprising that killed 81 people

* Bronislaw Komorowski, the speaker of the Polish parliament, said he would announce the date for the early presidential election in two weeks after consultations with all political parties

* U.S. Discovery space shuttle astronauts Rick Mastracchio and Clay Anderson have begun the second of three scheduled spacewalks, NASA reported

* At least 13 people were killed and over 520 injured as the continuing opposition protests in Thailand turned violent

* Global nuclear security can only be ensured if "all states have effective national [nuclear security] systems", Russian presidential aide Sergei Prikhodko said

* Ukrainian President Viktor Yanukovych departed for the United States where a nuclear security summit is to be held on April 12-13

* Patriarch Kirill, the head of the Russian Orthodox Church, was given the highest award of the Greek Orthodox Church of Alexandria - the star of the Apostle and Evangelist Mark

*The Russian sailing ship Kruzenshtern left the port of Havana, the last stop on the Latin American leg of its ambitious Transatlantic tour