A local commuter train has a suspicious package on it, found during rush hour.Several passengers said an individual dressed in dark clothes with a full face mask on, entered the train at of of its stations, dropped off the package and exited immediately.Other passengers immediately left the train and called for security.Security personnel evacuated the train and set up a perimeter of safety and shut down all train service coming into and exiting the station.Twenty minutes later, local police received an anonymous call stating that a bomb was placed on a commuter train and was set to detonate in 24-28 hours, unless some prisoners were released from an overseas detention center in a Middle East country.

What U.S. agencies would have some jurisdiction over the incident?