15:38 13 September 2012
The grounds of the American embassy in the Yemeni capital of Sanaa is the latest US post to be overrun by protesters, following a deadly attack on the US consulate in Benghazi which claimed the life of the US ambassador to Libya.
Questions regarding the Americans' ability to safeguard their own embassies have been raised after police fired warning shots in the air as crowds advanced in Yemen, ultimately gaining access and setting fire to vehicles.
The BBC have reported that in addition to using tear gas and water cannons, the security teams in Sanaa used live fire on Thursday.
While control of the compound's interior has been regained, protests have swelled outside.
Earlier on Thursday, American investigators were looking into a possible link with the attack on Libya and its date - September 11th - being related to terrorism actions.
In the Libyan attack, US Ambassador J Christopher Stevens and three other consul staff died in the fires after rebels launched grenades and gunfire into the building. Several Libyans also died.
Cairo is another location of protests regarding the release of the film 'Innocence of Muslims' which depicts the Prophet Muhammad scandalously. In Cairo, demonstrators breached the barriers and tore down the flag.
President Mohammed Mursi has appealed for calm, saying Egyptians "reject any kind of assault or insult" against the Prophet Muhammad.
"I condemn and oppose all who... insult our prophet. [But] it is our duty to protect our guests and visitors from abroad," he said in a statement broadcast by state media.
"I call on everyone to take that into consideration, to not violate Egyptian law... to not assault embassies."
American president Obama has confirmed that the US will not "break" any "bonds" with the new Libyan government as it investigates the aggressors' actions of which he insisted that "there is absolutely no justification for this type of senseless violence".