The Interior Ministry says it seized weapons and explosives, and arrested people for ‘planning terrorist operations’.
Bahrain security forces have arrested a number of suspects and confiscated weapons and explosives before a planned attack, the Interior Ministry said.
The ministry did not say how many people were arrested or specify their nationalities.
“Terrorists (were) arrested for planning terrorist operations against security and civil peace,” the Interior Ministry wrote on Twitter on Monday.
It described them as “linked to terrorist groups in Iran”.
Bahrain, host to the United States Navy’s Fifth Fleet and other international naval operations, has often accused Shia Muslim Iran of trying to destabilize the Sunni-controlled kingdom, which has a Shia majority population. Iran has denied such allegations.
The island state was the only Arab Gulf state to see a significant pro-democracy uprising in the 2011 Arab Spring, from a predominantly Shiite opposition movement, which it destroyed with the help of Saudi Arabia and the United Arab Emirates.
Opposition movements were banned and hundreds of dissidents were arrested – with many being stripped of their nationality.
Human rights groups have regularly said that cases against activists in Bahrain – men and women, religious and secular – do not meet the basic standards of fair trials.
Bahrain authorities have repeatedly denied the allegations.
Last year, Bahrain said it had foiled a “terrorist attack” backed by Iran’s Islamic Revolutionary Guards Corps.