U.S. Marines are conducting a training event on Oahu that will involve approximately 100 Marines and may increase noise levels for the public, according to a release. 

The 31st Marine Expeditionary Unit’s Maritime Raid Force is returning to Oahu for its annual training exercise, which will prepare Marines for deployment throughout the Indo-Pacific. The training has been conducted on Oahu since 2019.

The exercises will take place throughout Oahu from Jan. 6-20.  

The pre-deployment training program involves simulated direct action and limited-scale raids.

Oahu residents and visitors may hear increased noise from ground tactical vehicles, military aircraft, blank gunfire and simulated explosives. 

"31st MEU Maritime Raid Force Marines will conduct controlled breaching operations at entrances of training buildings planned for use within exercise scenarios," said Mark McDonough, spokesperson for Marine Corps Base Hawaii, to Spectrum News Hawaii, in an email. 

The Marines will also use training tools like simulated fragmentation and "flash-bang" grenades, according to McDonough.

The U.S. military, law enforcement authorities, the state and local landowners are coordinating the exercises.

The Honolulu Police Department and other law enforcement agencies will take part in the training in order to practice similar skills. 

Law enforcement and military safety personnel will be on hand for each simulation.   

Michelle Broder Van Dyke covers the Hawaiian Islands for Spectrum News Hawaii. Email her at michelle.brodervandyke@charter.com.

Editor's note: More information about what will be used for the simulated explosives was added to this story.