Bahrain announced on Wednesday the arrest of four suspects behind the bombing of an oil pipeline in the village of Buri in November last year. A ministry statement said authorities had arrested four people, two of whom had received intensive training in Iran to carry out attacks to harm Bahrain’s economy and its oil pipeline. The government said one of the men already faces a 15-year-sentence in another case. The men range in age from 23 to 27 years old. “Immediately after their return from Iran, they planned and got ready to blast the oil pipeline ...in addition to committing a series of other terrorist acts. They checked out the location and remotely bombed the pipeline,” the Interior Ministry said. Authorities were searching for three others “involved in the financing, planning, and implementation” behind the attack, the statement said, two of which live in Iran. Iran denies any role in Bahrain’s unrest. The explosion on November 10 caused a fire at Bahrain’s main pipeline near Buri village, 15 km (10 miles) from the capital Manama, forcing the evacuation of residents. No one was injured in the explosion and no militant group immediately claimed the blast. Iran has called accusations that it had any role in supporting violent acts in Bahrain “baseless and fabricated”, but it has allowed the exiled Bahrainis to promote their ideas on Iranian official media and hold mourning ceremonies for those involved in deadly attacks in the country.