Some residents of Tehran on Sunday chanted slogans against the clerical leadership from balconies and windows, reports said, a day after Iranians abroad staged giant opposition rallies in Europe and North America.

Israeli Prime Minister Benjamin Netanyahu said on Sunday that any deal between the United States and Iran must involve the removal of all enriched uranium from Iran as well as Tehran's ability to enrich more.

The exiled son of Iran's last shah said he was ready to lead the country to a "secular democratic future" at a rally in Munich on Saturday, after U.S. President Donald Trump said a change of power would be the "best thing".

The U.S. and Iran are expected to hold a second round of nuclear talks in Geneva next Tuesday in an effort to reach a deal that prevents war, a U.S. official and three sources with knowledge told U.S. news portal Axios.

U.S. President Donald Trump said that a change in power in Iran "would be the best thing that could happen" as the U.S. administration weighs whether to take military action against Tehran.

With one American carrier strike group already in the Middle East and another apparently on its way as U.S. President Donald Trump ramps up pressure on Iran to give up its nuclear program, fears are rising of the outbreak of another war that could spread into a regional conflict.

The 12-day Israel-Iran war last year appeared to cripple key elements of Iran's military, yet left its capabilities far from neutralized — a distinction that looms large as tensions rise again.

The United States Central Command said on Friday it had completed the transfer of detained Islamic State group suspects held in Syria to Iraq.

CENTCOM said it "completed a transfer mission following a nighttime flight from northeastern Syria to Iraq on Feb 12 to help ensure ISIS detainees remain secure in detention facilities."

Indonesia has begun training a contingent of up to 8,000 soldiers it plans to send as part of an international peacekeeping force to Gaza, the first firm commitment to a critical element of U.S. President Donald Trump's postwar reconstruction plan.

Indonesia has experience in peacekeeping operations as one of the top 10 contributors to United Nations missions, including in Lebanon, and has been deeply involved in providing humanitarian aid to Gaza, including funding a hospital.

Britain's High Court ruled Friday that the government's decision to outlaw the protest group Palestine Action as a terrorist organization was unlawful, but it kept the ban in place pending another hearing while the government prepares an appeal.

Judges Victoria Sharp, Jonathan Swift and Karen Steyn said "the nature and scale of Palestine Action's activities" did not meet the "level, scale and persistence" that would justify proscription.

Muneer Elbaz remembers the joy of visiting the Great Omari Mosque in Gaza with his family, praying at a site where people have worshipped over centuries as empires came and went.

"These were the best days," Elbaz said, as he recalled promenading through the lively markets around the mosque before the Israel-Hamas war. "This place transports us from one era to another."