"Pinning the blame on others and repeating outdated scenarios and baseless accusations against others will not help the Bahraini government resolve its problems with its citizens," said foreign ministry spokesman Bahram Ghasemi on the ministry's website.
"We once again advise Bahraini officials to prepare the ground for engagement and dialogue with their own people instead of beefing up security and police arrangements," he added.
Bahrain's authorities announced yesterday that 116 people had been arrested on suspicion of links to Iran's Revolutionary Guards military force.
Bahrain, which is governed by a Sunni monarchy, accuses Iran of fomenting trouble and supporting protests among its Shiite citizens, which make up the majority of the population - accusations which are denied by Tehran.
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