A Ukrainian military spokesman says a humanitarian convoy being dispatched to eastern Ukraine by Russia will not be admitted into the country.
Andriy Lysenko, a spokesman for Ukraine's National Security and Defense Council, said the convoy will not be let in until it has been certified by the International Committee of the Red Cross (ICRC).
A convoy of nearly 300 Russian trucks headed for Ukraine early on August 12, one day after agreement was reached on an international humanitarian relief mission.
The ICRC said it had no information on what the trucks were carrying or where they were going.
Ukrainian and Western officials have voiced concerns that Russia could use the pretext of humanitarian aid to send troops into eastern Ukraine where government forces are fighting pro-Russian separatists.