Israel's leader says Western powers are "caving" into Iran even as the Islamic Republic keeps railing against them.

Responding to the Iranian supreme leader's call to continue the struggle against the United States regardless of the outcome of nuclear talks, Benjamin Netanyahu says Sunday his country will not accept such a reality.

Nuclear talks in Vienna aimed at placing restrictions on Iran's nuclear program in exchange for a lifting of sanctions continue. The talks have already gone past four deadlines.

Iran's state-run Press TV cited Ayatollah Ali Khamenei as calling the U.S. an "excellent example of arrogance." It said Khamenei told Tehran university students to be "prepared to continue the struggle against arrogant powers."

Netanyahu says that Iran "does not hide its intentions" and warned the world against placating it.