WASHINGTON -- U.S. authorities are warning air travelers to expect greater scrutiny of thermoses and other insulated drink containers at security checkpoints after intelligence suggested they could be used to hide explosives.

There is "no information related to any specific or imminent threat," Ann Davis, a spokeswoman for the Transportation Security Administration, told Reuters on Friday.

A notice on the TSA's website warned about the possibility that explosives might be hidden inside the beverage containers and said the warning was "based on intelligence."

It said TSA "is carefully monitoring information related to terrorist tactics and working with our international partners to share information and security best practices."

As a result, passengers flying within and to the United States may notice additional security measures related to insulated beverage containers in coming days, the notice posted on Thursday said.

Those carrying the containers can expect additional screening of them using procedures currently in place, including X-rays, physical inspection and the use of explosives detection technology, the notice said.