Orange County residents may have heard a series of loud explosions Wednesday morning, but officials are telling residents not to worry.

The O.C. Sheriff’s Department’s Hazardous Devices Section conducted a controlled explosive disposal at the Frank R. Bowerman landfill in Irvine.

Residents may hear loud noises between 10 a.m. and 11 a.m. as the operation is conducted to destroy about 60 pounds of explosive materials, the Sheriff’s Department stated.

“HDS will safely be detonating most of the materials in ‘shot holes’ dug into the ground,” a news release said.

Sky5 was over the event at 10 a.m., where crews had dug 10 pits to set the explosives in.

About a dozen law enforcement and bomb squad vehicles could be seen parked a safe distance away from the section of landfill being used to detonate the explosives.

The HDS team was also expected to detonate about eight pounds of material in a fully enclosed containment vessel designed to safely transport and destroy explosives.

The Orange County Fire Authority, Orange County Health Care Agency and the O.C. Sheriff tactical medics were at the site to monitor the disposal.