UNITED NATIONS (AP) — The U.N. Security Council has refused to back a report by a panel of experts which unanimously concluded that Iran violated U.N. sanctions when it launched several ballistic missiles a year ago.

Australia's U.N. Ambassador Gary Quinlan, who chairs the committee monitoring sanctions on Iran, did not identify which countries were opposed in his briefing to the council on Monday. But council diplomats, speaking on condition of anonymity because consultations were private, said Russia was most vocal in its opposition and was supported by China.

Quinlan told the council that a number of council members backed the panel's view that Iran's launch of Shahab-1 and Shahab-3 missiles in a war-game exercise in July 2012 "constituted a clear violation" of sanctions, and therefore all U.N. member states "should redouble efforts to implement ballistic missile-related sanctions on Iran."

He said the sanctions committee — which includes all 15 council members — wrote to Iran on April 12 asking for comment within 15 days on the panel's conclusion. Iran has not replied and "the committee is currently considering additional follow up actions," he said.

The Security Council has imposed four rounds of sanctions against Iran because of concerns it is seeking to develop nuclear weapons and its refusal to suspend uranium enrichment. The division over the missile launches indicates a reluctance by Moscow and Beijing to take further action, especially as a new president, Hasan Rouhani, will be sworn in Aug. 4.

In another incident, Quinlan said the panel concluded that Iran violated — or probably violated — sanctions by shipping weapons to Yemeni insurgents in January that were seized by the government.

He said several council members stated that the panel's evidence "was sufficient to assert that Iran was in violation of its obligations, illustrating a pattern of sanctions evasion through arms smuggling in the Middle East." But he said others "stated that the lack of stronger evidence as to the provenance of the arms, such as documentation, justified the lack of a definitive conclusion."

Quinlan said the sanctions committee sent a letter to Iran on May 21 "bringing to its attention the panel's conclusion, expressing concern about the panel's findings and asking for its comment ... within 15 days." Iran's Foreign Ministry has denied it exported the weapons. But to date the government has not responded to the committee, Quinlan said.

The panel of experts, appointed by Secretary-General Ban Ki-moon and approved by the council, investigates and reports to the committee on implementation and alleged violations of sanctions against Iran.

Quinlan told the council that the panel's coordinator has stressed "that Iran continued to seek items for its prohibited activities from abroad by using complex procurement methods, including front companies, false documentation, and intermediaries."

To deal with these practices, he said, the coordinator called for additional vigilance and expertise by all countries, especially in identifying dual-use items that can be used for civilian activities but also in producing nuclear weapons and ballistic missiles.

Quinlan's report to the council, which was delayed because of the disputes, cited other activity related to Iran sanctions. It didn't identify the countries but U.N. diplomats did, speaking on condition of anonymity because the names were not made public.

According to the report and the diplomats, the United Arab Emirates sent a report on March 4 on the confiscation of shipments to Iran suspected of containing prohibited items; France reported on April 12 that a third state returned a fiber optic gyroscope to which can be used in missile guidance to France after the discovery that it was to be re-exported to Iran; and Singapore reported on June 6 that it seized a shipment destined for Iran of carbon fiber, which is strong, light-weight and can be used in the aerospace industry.

Sweden reported on March 8 that an individual had been found guilty of exporting control valves — a prohibited dual-use item — and the United States on April 18 reported on court cases against two Iranian national accused of illegally exporting and attempting to export dual-use items to Iran, the report and diplomats said.