Bahrain has arrested 15 individuals accused of working for Iran’s Islamic Revolutionary Guard Corps (IRGC). The announcement came just hours after Iran reportedly launched attacks on Bahrain and neighboring Kuwait. The Bahraini Interior Ministry said investigations are ongoing to identify all persons linked to the suspected Iranian cell.

Security operations in Bahrain have been continuing since late February, when Iran began attacks on the country. Last month, Bahraini courts sentenced nine people to life imprisonment for allegedly conducting terrorist activities with IRGC support. In April, authorities revoked the citizenship of 69 people accused of backing Iranian attacks on Bahrain.

Bahrain, which has a large Shia population, has long faced internal tensions. Many Shia citizens claim political and economic marginalization, while the government denies discrimination and repeatedly accuses Iran of inciting unrest in the kingdom.