Oil supply to parts of Eastern and Central Europe via a section of the Druzhba pipeline has been temporarily suspended, according to oil pipeline operators in Hungary and Slovakia on Tuesday.

Hungary's MOL said its Ukrainian partner told the company that a Russian rocket hit a power station close to the Belarus border that provides electricity for a pump station that led to this stoppage. Slovakia's Transpetrol confirmed the suspension as well, citing "technical reasons on the Ukrainian side," but did not specify a rocket strike.

"The reason for the suspension of supplies has not yet been officially confirmed by the Ukrainian side," said Transpetrol in a statement, adding that it expects to have more information about the cause of the shutdown by Wednesday.