Several dozen owners of transport companies block three major Polish border crossings with Ukraine to protest what they say is unfair competition from the neighbouring country's businesses. Trucks line up at the border checkpoint in Dorohusk, with almost all cargo traffic blocked by protesters who blame the liberalisation of European Union rules for the slump in their revenues. "We want the rules of fair competition to be restored," Rafal Mekler, a co-organiser of the protest, tells in Dorohusk. IMAGES AND SOUNDBITES