The Latest: Shanahan says Iran must cease 'all provocation'

WASHINGTON (AP) — The Latest on the United States and Iran (all times local):

2:30 p.m.

Acting Defense Secretary Patrick Shanahan says the accelerated deployment of a U.S. aircraft carrier group and some bombers to the Middle East is "prudent repositioning" of assets in response to what he said were indications of a credible threat from Iran.

Shanahan says in a tweet Monday that the U.S. will hold Tehran accountable for any attacks on U.S. forces or interests. And he is calling on Iran to "cease all provocation."

The U.S. has ordered the USS Abraham Lincoln Carrier Strike Group to move to the Middle East about two weeks ahead of schedule. The ships have been in the Mediterranean Sea and had planned to stop for a port visit in Croatia, but that has been canceled.

National security adviser John Bolton said Sunday night that the U.S. was deploying the ships and a bomber task force to the region, intending to send a message that "unrelenting force" will meet any attack on American forces or allies.

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12:45 p.m.

The U.S. is rushing an aircraft carrier and other military resources to the Middle East after seeing Iranian troops and proxy forces making preparations for attacks against U.S. forces and interests in the region, a defense official told The Associated Press.

At the White House, National Security Adviser John Bolton said Sunday night that the U.S. was deploying the USS Abraham Lincoln Carrier Strike Group and a bomber task force to the U.S. Central Command region, an area that includes the Middle East. In a statement, he said the move was in response to "a number of troubling and escalatory indications and warnings," but did not provide more details.

The request would get the ships into the region two weeks earlier than initially planned, according to the defense official, who wasn't authorized to speak publicly so spoke on the condition of anonymity.

The Abraham Lincoln and its strike group of ships and combat aircraft have been operating in the Mediterranean Sea recently. Bolton's reference to the Central Command area would mean the Lincoln is headed east to the Red Sea and perhaps then to the Arabian Sea or the Persian Gulf, which would take several days.