The Iran nuclear program’s Arak heavy water reactor. The EU said Iran needs to cooperate with a UN probe into its past atomic activity if the country wants a nuclear deal with world powers. Photo: Nanking2012/Wikimedia Commons.

The European Union is telling Iran to cooperate with a stalled U.N. probe of suspicions that it worked on atomic arms if the country wants a nuclear deal that will see removal of sanctions.

The cautionary EU statement comes ahead of a June 30 target date for such an agreement. It was obtained by The Associated Press ahead of its delivery at a meeting of the U.N’s International Atomic Energy Agency that opens Monday.

Read full story at the Associated Press.