Russian and US officials will hold urgent meetings today to discuss the collapse of the ceasefire in Syria, according to a US official. <br/><br/>A US official, speaking on condition of anonymity, said that an airstrike on aid workers yesterday has done significant harm to the peace plan. <br/><br/>Over the weekend, US-led airstrikes struck a Syrian Army position, killing 62 servicemen and injuring 100 more. US Central Command has admitted responsibility for the strike, claiming it mistook the Syrian forces for Daesh terrorists. In addition to American fighters, the UK, Australia, and Denmark were also involved in the incident.<br/><br/>On September 9th, Russian Foreign Minister Sergei Lavrov and US Secretary of State John Kerry announced a new plan on Syria, which stipulated a ceasefire that came into force last Monday. <br/><br/>It was the first step toward establishing a Joint Implementation Center which would coordinate Russian and American airstrikes against terrorist groups. The fate of this plan remains unkown in light of the airstrikes.