Bahrain announced on Wednesday that it has discovered a “terrorist cell” linked to Hezbollah and the Iranian Revolutionary Guards, reported al-Arabiya television.
It said that the cell was plotting to carry out bombings in the country.
The cell was headed by twins Ali and Mohammed Fakhrwari, it continued.
One of the detainees had previously met with Hezbollah chief Sayyed Hassan Nasrallah, who had provided him with 20,000 dollars, revealed al-Arabiya.
Hezbollah and Bahrain's relation has witnessed tension since the beginning of a 2011 uprising in the kingdom as the party became a strong advocate of the popular protests.
Ties between Lebanon and Bahrain reached an all-time low in 2011 when Nasrallah slammed the crackdown on the protesters.
His remarks prompted the Bahraini authorities to suspend the flights of Gulf Air and Bahraini Air between Manama and Beirut for several months.
Tensions between Hezbollah and Bahrain continued through 2015 with the Gulf Cooperation Council condemning in January 2015 Nasrallah remarks on the country as “incitement to violence and discord.”