TEHRAN, May 19 (Xinhua) -- Iranian top security official said on Tuesday that the United States has failed to gather support to renew a UN Security Council's arms embargo against Iran.

"Fruitless efforts of the U.S. to continue the Iran weapon sanction have provoked a strong reaction from Russia ... and the confusion of U.S.'s allies," Secretary of Iran's Supreme National Security Council Ali Shamkhani tweeted.

"The world is not tolerating bullying ... The end of this path is collapse of unilateralism," said Shamkhani.

U.S. officials have said that Washington was considering "every possibility" to renew the UN Security Council's ban on selling conventional arms to Iran which would expire in October.

Iranian President Hassan Rouhani said earlier that Iran would not accept the renewal of the UN arms ban against Iran.