New : Red Cross says it made contact with convoy . Ambassador Samantha Power said Russia has no business delivering aid in Ukraine when international aid groups are better equipped to do the job . Ukrainian media say Russian trucks bypassed expected checkpoint . Comment: The convoy comes as Ukraine makes strides against pro-Russian rebels .
New : Red Cross says it made contact with convoy . Ukrainian media say Russian trucks bypassed expected checkpoint . Comment: The convoy comes as Ukraine makes strides against pro-Russian rebels .