Blasts rang out over Bahrain early on Sunday as Iran's Guards said they attacked a US military base in the Gulf nation, which has been heavily targeted during the Middle East war.
Sirens sounded and authorities posted several alerts on social media urging residents to seek shelter, their first warnings since September.
After a lull in attacks Bahrain, which hosts a major US naval base, has been targeted twice in three days. The energy-rich Gulf has borne the brunt of Iranian strikes during the war.
