The Pentagon said on Monday it was unconcerned by an Iranian announcement that it would send naval vessels toward U.S. maritime borders, noting that lots of countries operated in international waters in the Atlantic.

An Iranian naval officer was quoted by the semi-official Fars news agency as saying on Saturday that the vessels were “approaching the United States’ maritime borders.”

The Pentagon has no information the ships are approaching the Atlantic yet, spokesman Colonel Steve Warren said, adding that “to our knowledge, this is an announcement only at this point.”