Lithuania said on Wednesday it has ramped up security around the country's electricity link with Poland ahead of a planned decoupling next month of the Baltic region's power systems from a Soviet-era grid shared with Russia and Belarus.

Lithuanian Prime Minister Gintautas Paluckas said the government had asked police to guard the link to Poland following attempts to disrupt the planned decoupling.

"We see very clear and unambiguous attempts by opponents to disrupt this process. That is why we are taking steps to protect our infrastructure," Paluckas said in a statement.