On Friday the US State Department expressed concern at what appeared to be a crumbling ceasefire in Ukraine, and events in Donetsk appear to show an escalation of fighting for the airport, which pro-Russian separatists claim they have recaptured from government forces.<br /><br />There are also reports of a heavy buildup of Russian forces on the Russian side of the frontier.<br /><br />The separatists continue to control many key points in the city, and the Ukrainians continue to accuse them of deliberately firing from residential buildings to prevent a riposte, or gain propaganda from a reply that produces civilian casualties.<br /><br />The Red Cross has been active in the city for months but on Thursday it suffered its first fatality in the Ukrainian conflict when a Swiss aid worker was killed by an artillery shell that hit close to the ICRC office. Both sides blame the other for firing it.
