An image grab taken from a video uploaded on YouTube on February 13, 2012, shows smoke and flames rising from reported shelling by regime forces in the Baba Amr neighbourhood in the central city of Homs. Forces of Syria's President Bashar al-Assad battered Homs on February 14, 2012 in some of the heaviest shelling for days in the flashpoint city, a monitoring group said. AFP PHOTO/YOUTUBE == RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / YOUTUBE" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS - AFP IS USING PICTURES FROM ALTERNATIVE SOURCES AS IT WAS NOT AUTHORISED TO COVER THIS EVENT, THEREFORE IT IS NOT RESPONSIBLE FOR ANY DIGITAL ALTERATIONS TO THE PICTURE'S EDITORIAL CONTENT, DATE AND LOCATION WHICH CANNOT BE INDEPENDENTLY VERIFIED ==