Syrian Forces Intensify Shelling in Homs

A market destroyed from Syrian government forces shelling, at the Baba Amr neighborhood in Homs province, February 20, 2012 (AP/Local Coordination Committees in Syria)

A home damaged by Syrian government forces shelling, in the Baba Amr neighborhood in Homs province, February 20, 2012 (AP/Local Coordination Committees in Syria)

A damaged armored vehicle belonging to the Syrian army is seen in the al-Khalidya district in Homs, February 20, 2012. (Reuters)

A burnt car and piled trash along a street in Homs, February 20, 2012 (Reuters)

A Syrian army tank in the neighborhood of Erbeen, near Damascus, February 20, 2012. The words on the tank read, "Assad, Syria". (Reuters)

Houses destroyed by Syrian government forces shelling, at Baba Amr neighborhood in Homs province, February 20, 2012. An opposition group says several people have been killed in heavy shelling. (AP/Local Coordination Committees in Syria)

Damaged shops along an empty street in Homs, February 20, 2012. Syrian government forces unleashed a heavy artillery barrage on a rebel-held district of the city of Homs, activists said. (Reuters)

A Palestinian student in Gaza City holds a black flag reading "Freedom, Syria" during a demonstration against Syria's President Bashar Assad and his regime, February 21, 2012. (AP)