Ukrainian govt: first lorries pass as Polish truckers lift blockade at one border crossing

But the Polish truckers - who have been pushing to stop Ukrainian drivers getting permit-free access to the EU - said the protest had not ended and they were just waiting temporarily for details of a reported local order against one stoppage.

The Polish protest, which started in early November, blocked four main land routes between the two neighbours, pushed up prices of fuel and some food items in Ukraine and delayed drone deliveries to its troops fighting invading Russian forces.

Blockades continued to stop traffic on three of those routes on Monday. But Ukraine's Deputy Prime Minister, Oleksandr Kubrakov, said 15 trucks had passed into Ukraine by the Yahodyn-Dorohusk crossing.

Another 25 trucks were being cleared to head the other way towards Poland, he added on Facebook.

"Stable truck traffic has been restored" since 2:00 p.m. (1200 GMT), Kurakov wrote.

Ukraine's customs service also said the crossing was open.

"The Yahodyn-Dorohusk checkpoint on the border with Poland ... is currently operating normally in both directions," it wrote on the Telegram messaging app.

It said 1,000 trucks were waiting to get into Ukraine from Poland and 100 trucks would go in the opposite direction.

Broadcaster Polsat News earlier reported that a local Polish mayor had taken action to stop the blockade at the Yahodyn-Dorohusk crossing because he feared it would hurt local jobs.

The protesters said they were waiting to get details of that order and would appeal against it.

"We will go to court," Tomasz Borkowski, leader of the Polish Committee to Protect Transporters and Transport Employers told Reuters. "For now the protest has not been brought to an end."

The truckers have accused their Ukrainian counterparts of using their permit-free access to the EU to undercut prices.

Both Kyiv and Brussels say the access agreement is not negotiable. But deputy infrastructure minister Serhiy Derkach said Ukraine was open to talks.

"We are ready for a constructive dialogue with the Polish authorities to resolve the situation completely and prevent further protests," he wrote in a post on Facebook.