( IRNA ) - Ministry of Foreign Affairs sent a message to British embassy in Tehran, calling for guarantee by London to avoid violating Iranian territorial waters in the future.
"The Islamic Republic of Iran severely protests against the violation of its territorial waters in Persian Gulf, and while underlining the importance of international laws and respect for the sovereignty of nations cautions the London government of the consequences of such violations," the message read.
According to the message, Iranian officials have declared that 15 British marines, fully armed, entered Iran's territorial waters aboard two boats on Friday March 23.
The Iranian Foreign Ministry is also to deliver a letter to the United Nations in protest at the violation of its territorial waters.
Some 14 male and one female British marines who had illegally entered Iran's territorial waters, were arrested by Iranian coast guards in the Persian Gulf.