June 4 (UPI) -- Iran Supreme Leader Ayatollah Ali Khamenei Wednesday dismissed a U.S. proposal to halt Iranian uranium enrichment, appearing to reject a central U.S. demand in the nuclear program talks.

Khamenei said the proposal was "100% against" Iran's interests.

"The rude and arrogant leaders of America repeatedly demand that we should not have a nuclear program," Khamenei said. "They cannot do anything about this."

Axios reported Monday that the U.S. proposal would bar Iran from building new enrichment facilities while establishing a strong system of monitoring and verification.

Related