Western and Arab governments have pledged more political and material support to the Syrian opposition, Reuters reports citing a statement released.
The Friends of Syria group deplored the "unabated" arms supply to President Bashar al-Assad's government by third countries.
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A woman, 63, was allegedly grabbed from behind and dragged to the ground in a serious assault near a nature reserve.
A 21-gun salute was first sounded in the capital, Havana, as Castro's ashes were taken to the cemetery in eastern Cuba.