Dover Air Force Base will take part in a security exercise next week.

Dover Air Force Base officials have announced the installation will take part in a security exercise from Oct. 24 to Oct. 26.

The 2016 Force Protection/Mass Accident Response Exercise will include an active shooter and a chemical/biological/radiological/nuclear scenario in addition to several smaller scale incidents. Visitors to the base should expect to see armed security forces personnel and role-players carrying weapons as well as interruption of base services and increased/blocked traffic.

During the active shooter scenario, the base gates will remain closed for the duration of the lockdown, expected to last several hours, and personnel will be unable to enter/leave base or leave their work centers until lockdown is lifted.

During the lockdown, there will be increased traffic on Del Route 1 due to traffic being backed up at the main gate.