The U.S. aircraft carrier Abraham Lincoln, deployed by President Donald Trump's administration to the Middle East as a warning to Iran, passed through Egypt's Suez Canal on Thursday, the Suez Canal Authority said.
The deployment of the carrier strike group is meant to show the United States will retaliate with "unrelenting force" to any attack, national security adviser John Bolton said on Sunday.
Iran has dismissed announcement of a U.S. aircraft carrier deployment as old news, recycled for psychological warfare.
ABC News reported on Monday that the deployments are in response to "clear indications" Iranian and Iranian proxy forces were preparing for a possible attack on U.S. forces, citing a U.S. official.
"The movement of the aircraft carrier USS Abraham Lincoln to the region was expedited, and it was ordered there effective immediately," added the official.
Amid rising tensions between the United States and Iran, Bolton said the decision was "in response to a number of troubling and escalatory indications and warnings."
"The United States is not seeking war with the Iranian regime, but we are fully prepared to respond to any attack, whether by proxy, the Islamic Revolutionary Guard Corps or regular Iranian forces," Bolton said in a statement.