A Polish official says that contrary to German claims, no documents or records show his country ever renounced its right to seek World War II reparations from Germany.

Berlin insists Poland waived such rights in 1953, while under Moscow's control. But prominent ruling party lawmaker Arkadiusz Mularczyk told The Associated Press Tuesday this wasn't backed up by evidence, and a copy of a 1953 note signed only by Poland's leader of the time is not legally binding.

He believes that raising reparations with Berlin would improve bilateral ties, and said Poland has not been adequately compensated for the human and material losses it suffered under Nazi German occupation.

Mularczyk heads a team of experts counting the losses, and intends to present it to Germany.