Military exercises cause concern in Southern California

Key facts

• Military exercises are taking place across Southern California.
• The exercises involve sounds of gunfire and helicopters.
• Training occurs at empty buildings.
• Residents have expressed concern.

Intense military training exercises across Southern California have caused unease among residents. The drills, which include sounds of gunfire and helicopters operating during the night, are being conducted at empty buildings. The exercises have left some locals on edge.