The head of the Atomic Energy Organization of Iran (AEOI), Ali Akbar Salehi, protested to the chief of the International Atomic Energy Agency (IAEA), Yuki Amano, regarding the increases in questions about Iran’s explosive detonators and the lengthy process of resolving questions about their nuclear program.

“In previous meetings, we had a memorandum of understanding that in consideration of the answers to the questions of the IAEA about EBW [exploding bridgewire detonator], for them to consider this issue to be closed; but they didn’t do this, meaning they want to consider it closed in a half way, which we protested against,” Salehi said on Aug. 18, according to Iranian Students’ News Agency (ISNA).

EBW is a type of detonator that can be used for industrial purposes, but also for the detonation of nuclear weapons. Salehi said, “In regard to EBW, before there were not more than two or three questions, but suddenly it turned to 60 questions, which we protested against.”

According to a May 2014 IAEA report, “Iran provided additional information and explanations, including showing documents, to substantiate its stated need and application of EBW. Iran showed information to the Agency that simultaneous firing of EBW was tested for a civilian application.” The reported added, “The Agency’s assessment of the information provided by Iran is ongoing.”