A border blockade by haulers angry that the European Union has suspended a permit system for their Ukrainian counterparts has led to problems with deliveries of wartime supplies.

Thousands of Ukrainian truck drivers are stalled at the border in Poland as tensions between the two countries grow.

Ukraine's top truckers union said on Friday its hopes of a rapid end to Polish trucker protests at the border were fading, as Kyiv prepared to evacuate its hauliers stranded in Poland.

Ukrainian and Polish officials met in Warsaw on on Dec. 1 to work on a solution to end a protest by Polish truckers who want the EU to restate entry permits.

A protest by truckers in Poland has led to a backup of military aid and supplies to Ukraine's armed forces. The protesters want to end Ukrainian truckers' permit-free access to the EU.

Poland is calling on the European Union restore permits limiting transit for Ukrainian truckers, Prime Minister Mateusz Morawiecki said on Monday as Polish and Slovakian truckers block several border crossings to Ukraine.

In a Polish car park near the Ukrainian border, truck drivers stranded by a month-long blockade that has caused disruption and a row with Ukraine shoveled snow off their vehicles.Polish transport business owners launched blockades at the Ukrainian border in early November,