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A handout picture released by the opposition-run Shaam News Network on June 2, 2013, shows smokes rising as a mortar shell hits a building in the town of al-Hula in the Syrian province of Homs during clashes between rebel forces and pro-government troops. UN leader Ban Ki-moon expressed fear for 2,500 "trapped" civilians as Syrian government forces press a campaign to take the city of Homs, a spokesman said.
A handout picture released by the opposition-run Shaam News Network on June 2, 2013, shows smokes rising as a mortar shell hits a building in the town of al-Hula in the Syrian province of Homs during clashes between rebel forces and pro-government troops. UN leader Ban Ki-moon expressed fear for 2,500 "trapped" civilians as Syrian government forces press a campaign to take the city of Homs, a spokesman said.

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    UN agency: Thousands trapped in Homs

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UN agency: Thousands trapped in Homs

The heart of the Syrian uprising is being bombarded by government forces. Mohammed Jamjoom reports.

UN agency: Thousands trapped in Homs

The heart of the Syrian uprising is being bombarded by government forces. Mohammed Jamjoom reports.