Montgomery County police officials say the public should not be alarmed if they see officers in uniforms conducting terrorist-activity response drills at Metro and MARC train stations between Monday and Thursday this week.

More than 160 representatives from the Montgomery police, the Sheriff’s office, Montgomery Fire/Rescue, Gaithersburg police, Rockville City police, Takoma Park police, Maryland State police and Metro Transit will participate in the exercises. Police spokeswoman Lucille Baur declined to say what sort of training activities police officers would be doing because it would not be “appropriate to go into the specifics of the type of training that we do to provide security.”