TROY — Rensselaer Polytechnic Institute will be holding an active shooter training session between 9 a.m. and 1 p.m. Tuesday.

The drill is designed to be realistic, and during the session access to some areas of the campus will be limited. Nearby residents and motorists may hear loud sirens and notice an increased presence of emergency vehicles in Troy, according to a news release.

Anyone with questions regarding the drill can call Rensselaer Department of Public Safety at 518-276-6656.