BRUSSELS, June 3 (Reuters) - The European Commission said on Wednesday tariffs proposed by the U.S. on grounds of a failure to effectively ban imports of goods made from forced labour are unjustified and reiterated its commitment to the trade deal sealed with Washington last year.

"The EU considers tariffs imposed on these grounds to be unjustified," a spokesperson said. "On the EU side, we are on track to ensure implementation of our Joint Statement tariff commitments by the end of June."