Hundreds of law enforcement officers and firefighters from throughout Northern California are expected to attend a week-long training beginning today in Scotts Valley.

The training exercises will be conducted during daytime hours through June 29 at Scotts Valley High School.

Officers will train on how to respond and handle a mass casualty emergency.

During the training, they will be using Simunitions, which produce loud noises, and volunteer role-players to give each scenario a realistic feel.

Police advise local residents, especially those in the Glenwood area, to be aware this will be for training purposes only and not an actual emergency.

During the training, both the Scotts Valley High School and the Glenwood Open Space Preserve (West Side Only) will be closed.