German Chancellor Angela Merkel urged the leadership of the self-proclaimed Donetsk and Luhansk people's republics to prevent Ukrainian humanitarian aid to the South-East of the country. "there are currently very many difficulties, for example with regard to the crossing of humanitarian convoys from Ukraine in the Donetsk and Luhansk region. I must say that all this was done long enough, as long as the working groups have been established. Today it is already achieved. There is a ray of hope for us