By Joshua Tosin Ogunsakin 
The United States government has issued a security alert to its citizens in Nigeria following escalating hostilities between the US and Iran.
In a statement on Monday, the US authorities warned Americans abroad to remain vigilant in the wake of ongoing military operations involving Iran.
“Following the launch of US combat operations in Iran, Americans worldwide and especially in the Middle East should follow the guidance in the latest security alerts issued by the nearest US embassy or consulate,” the advisory stated.
The alert noted that Americans could experience travel disruptions due to periodic airspace closures linked to the unfolding crisis.
The US Department of State advised citizens worldwide to exercise increased caution.
It also urged them to enrol in the Smart Traveler Enrollment Program to receive timely security updates and to follow the ‘U.S. Department of State Security Updates for US Citizens’ WhatsApp channel for further information.
The advisory follows reports by Iranian state and local media confirming the death of Iran’s Supreme Leader, Ayatollah Ali Khamenei, after airstrikes reportedly carried out by the United States and Israel.
Several other high-ranking Iranian officials were also said to have been killed in the strikes.
In retaliation, Iran has reportedly launched multiple missiles targeting U.S. bases in Gulf countries, including Saudi Arabia, vowing to avenge the death of its Supreme Leader and other regime officials.
US President Donald Trump, speaking in a live broadcast while the attacks were ongoing on Saturday, said he was determined to eliminate members of the Iranian regime.
He also called on Iranian citizens to take control of their government once military operations were concluded.