Sirens sounded in Bahrain, the tiny Gulf kingdom that houses U.S. Naval Forces Central Command and the United States Fifth Fleet, as Iran promised to retaliate against the U.S.'s unprecedented strikes over the weekend, APA reports citing NBC News.
"The siren has been sounded. Citizens and residents are urged to remain calm and head to the nearest safe place," Bahrain's interior ministry said.
The country also suspended air traffic in its airspace as a "precautionary measure in light of regional developments," according the Ministry of Transportation and Telecommunications.