There are over 4,000 lorries queued up at the Polish-Ukrainian border as of the morning of 23 December. Source: Andrii Demchenko, Spokesperson for the State Border Guard Service of Ukraine, duringthe national joint 24/7 newscast Details: Demchenko noted that four checkpoints - Rava-Ruska, Krakivets, Yahodyn and Shehyni - are still blocked.