Iran's elite force, the Islamic Revolutionary Guard Corps (IRGC) said on Saturday that a new "provocative" incident took place in the Persian Gulf as US Navy ships approached Iranian patrol vessels.
An Iranian vessel had ignored repeated radio calls as it sped toward the US ship, prompting the American vessel to fire warning shots, Fox News reported.
"At 04:00 p.m. local time (1130 GMT) on Friday, the Supercarrier USS Nimitz and the accompanying warship approached the IRGC vessels and flew a helicopter in Resalat oil-gas field", IRGC statement said.
The Guards "ignored the unconventional move by the USA ships and continued their mission, after which the supercarrier and its warship left the area", the statement added.
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"Iranian vessels did not pay attention to the unprofessional and provocative acts and continued to guard in the zone after the USA vessels left", statement of Iran's military leadership said.
Also Saturday, Iran's parliamentary committee on national security and foreign policy held an urgent meeting to review its response to a package of sanctions approved by the US Senate and sent to Donald Trump to be signed into law.
The Navy ship fired warning shots into the water over concerns of a collision, one of the officials said. Tehran challenged the statement, saying that the warship moved towards an Iranian vessel of the 3rd Naval Division and fired two rounds in an attempt at intimidation.
A United States official, speaking on the condition of anonymity, said the Iranian boat was armed but its weapons were unmanned. Tehran dismissed the allegations and warned that Americans "would be responsible for any unrest in the Persian Gulf", and urged it to "change its behavior." .
The US legislation imposes mandatory penalties on people involved in Iran's ballistic missile program and anyone who does business with them.