A train in Maryland was evacuated on Sunday due to a "possible bomb threat," according to local police.

Sgt. Powers with the Maryland State Police (search) said that an Amtrak (search ) train was being held between Mexico Farms, Md., and Cumberland, Md.

Amtrak Spokesman Dan Stessel told Fox News that Amtrak Train 30, the "Three Rivers" train between Chicago and Washington, D.C., was being searched by Cumberland Police with bomb-sniffing dogs.

Two passengers aboard the train were said to have aroused suspicion, which led to the Cumberland Police being notified.

Stessel said the situation was not abnormal and that trains have frequently been searched since the Sept. 11, 2001, terror attacks.

Nico Melendez, a spokesman for the Transportation Security Administration, confirmed that there was no bomb threat and that the situation began when an individual passenger reported the "suspicious" activity of several other passengers. Melendez says all such reports are taken seriously since Sept. 11.