After canceling negotiations with the U.S. scheduled for Sunday, Tehran has signaled it is willing to talk.

European foreign ministers told their Iranian counterpart in a call on Monday to return to nuclear negotiations with the U.S. and refrain from escalating conflict with Israel, to which Iran's foreign minister said Tehran's priority was to confront Israel for now,

Iran and the U.S. have held five rounds of talks since April 12, aiming to hash out a deal that limits Iran’s nuclear program in exchange for the removal of sanctions on Tehran.

Experts suggest the U.S. has a strategic opportunity to leverage Iran's weakened position for a nuclear deal after Israel's targeted strikes on Iranian nuclear and military sites.

"I am pleased to confirm the 6th round of Iran US talks will be held in Muscat this Sunday the 15th," Bad Albusaidi, the country's foreign minister said on social media.

There will be no nuclear talks with Iran on Sunday, a senior U.S. administration official says, adding Washington still hopes Tehran will resume negotiations soon. “We remain committed to talks and hope the Iranians will come to the table soon,

Iran is conducting more military exercises and building a third enrichment facility in response to the latest pressure.

Iran appears ready to retaliate if it faces too much pushback. It says this could be “proportionate,” although that leaves many options open.