The United States Embassy in Nigeria has cancelled all visa appointments scheduled for Wednesday, March 4, 2026, in Abuja, citing heightened security concerns amid rising global tensions involving the United States and Iran.

In a security advisory published on its website on Wednesday, the embassy warned of a “high potential for protests” in the Federal Capital Territory and urged American citizens to remain indoors.

“The U.S. Embassy in Abuja informs U.S. citizens that there is a high potential for protests in Abuja tomorrow, March 4, 2026, due to the current conflict with Iran,” the statement said.

It added that previous demonstrations had degenerated into violent clashes between protesters and Nigerian security agencies, advising U.S. nationals to stay within their residences throughout the day.

The alert follows escalating hostilities in the Middle East after joint U.S.-Israeli airstrikes reportedly killed Iran’s Supreme Leader, Ayatollah Ali Khamenei, along with several senior Iranian officials.

In retaliation, Tehran launched multiple missile attacks on U.S. military installations in Gulf states, including Saudi Arabia, vowing to avenge the killings. The conflict, which began over the weekend, entered its fifth day with no signs of de-escalation.

On Tuesday, U.S. President Donald Trump declared that it was “too late” for Iran to seek negotiations, despite indications from Tehran suggesting interest in talks. Writing on Truth Social, Trump said Iran’s military and leadership structures had been crippled by the strikes.

Speaking later at the White House during a meeting with German leader Friedrich Merz, Trump claimed the attacks caused extensive damage and suggested Iran had been planning an assault before the U.S.-Israeli action. His comments appeared to contradict earlier remarks by Secretary of State Marco Rubio, who had indicated Israel initiated the conflict.

Iran, however, has ruled out any dialogue with Washington. Mohammad Mokhber, a senior aide to the late supreme leader, said there was “no basis for negotiations” with the United States, insisting Iran could sustain the war indefinitely.

Meanwhile, Iran announced plans for a three-day state funeral for Ayatollah Ali Khamenei. According to the official news agency IRNA, public tributes would begin at the Imam Khomeini Grand Mosque in Tehran, ahead of his burial in Mashhad, northeastern Iran.