European powers are pushing for a new resolution against Iran by the U.N. atomic watchdog's board next week to pressure Tehran over its poor cooperation, as the world awaits the return of U.S. President-elect Donald Trump, diplomats say.

Such resolutions risk further diplomatic tension with Iran. It has retaliated to previous ones and other criticism at the International Atomic Energy Agency's 35-nation Board of Governors by stepping up its nuclear activities and barring top IAEA inspectors, heightening Western concerns about its aims.

The resolution would task the IAEA with issuing what is known as a comprehensive report on Iran's nuclear activities, in addition to its regular quarterly ones, which would describe things in more detail and put further focus on problem areas, like Iran's continued failure to explain uranium traces found at undeclared sites.