Sirens blared in Jordan on Thursday, an AFP correspondent reported, hours after Iran's military said it had targeted sites in Gulf countries in retaliation for U.S. strikes.

State broadcaster Al-Mamlaka added: "Alarm sirens sounded in Jordan on Thursday to alert citizens and urge them to follow instructions."

The United States launched new airstrikes against Iran early Thursday, and Tehran responded by targeting Bahrain, Kuwait and Qatar in crossfire that again threatened an interim deal intended to help end the war in the Persian Gulf.

The strikes came hours after U.S. President Donald Trump said recent Iranian attacks on ships in the Strait of Hormuz signaled the end of the fragile ceasefire. The U.S. struck a variety of military sites and port facilities early Wednesday after Iran targeted several merchant vessels off the coast of Oman, sparking Iranian fire then as well.

The United States launched new strikes against Iran on Wednesday in a bid to curb Tehran's ability to target shipping in the Strait of Hormuz, the U.S. military said.

People in Bahrain and Kuwait awoke on Wednesday to the now familiar sound of warning sirens and explosions in the distance, as Iranian strikes again dashed hopes of a return to normalcy.

U.S. President Donald Trump's Board of Peace is planning a pilot "humanitarian zone" in southern Gaza which would aim to accommodate tens of thousands of vetted Palestinian civilians, a board official told AFP.

U.S. President Donald Trump warned Wednesday that U.S. forces would strike Iran "hard" in the coming night, after earlier declaring Washington's ceasefire with Iran over at a NATO summit in Ankara.

"We're gonna hit 'em hard tonight," he said before holding talks with Ukraine's Volodymyr Zelensky, saying: "They violate the agreement every day."

An Israeli strike on Gaza just before the kickoff of the Egypt-Argentina World Cup match killed a top Palestinian aid official who was instrumental in efforts to organize public screenings of the game across the enclave, according to local health officials.

The blast turned what was supposed to be a moment of celebration — the live screening of a potential Argentina upset by an Arab team — into a reminder of how the near-daily Israeli strikes across Gaza are continuing to kill civilians despite a truce reached in October.

President Donald Trump said Wednesday the ceasefire with Iran was over, calling Tehran "sick" after Washington launched strikes on the Islamic Republic and Iran said it targeted U.S. bases in the Gulf.

"As far as I'm concerned, it's over," Trump said at a NATO summit in Ankara when asked if the truce with Iran was now finished. "It's just a waste of time dealing with them."

Syria's President Ahmed al-Sharaa arrived in Ankara Wednesday where he is due to meet U.S. President Donald Trump on the sidelines of NATO summit, Turkish television stations reported.

The summit of the military alliance, which closes on Wednesday, has brought 36 heads of state together.

Funeral processions for Iran's late Supreme Leader Ayatollah Ali Khamenei began Wednesday in the Iraqi city of Najaf with thousands of mourners present.

The Islamic Republic's dayslong funeral for Khamenei began Saturday, with authorities shutting down streets, airspace and daily life in Tehran as mourners commemorate the life of the man who led Iran for decades with an iron fist while confronting the West. His body will later be taken from Najaf to the city of Karbala before returned to Iran.