BRUSSELS, June 1. /TASS/. The European Union urges all countries against which the United States has imposed tariffs to dispute this decision in the WTO, Commissioner Cecilia Malmstr·m said on Friday.

"I encourage all countries to take the measures," she said.

The European Union does not see an opportunity to continue talks on the free trade zone with the United States after introduction of duties, Malmstr·m noted.

"We are not going to enter into any negotiations," she said.

It was reported earlier the United States introduced customs duties on import of steel and aluminum products from the European Union, Canada and Mexico amounting to 25% for steel and 10% for aluminum.