"Various weapons, including an AK 47 assault rifle and several pistols, as well as a considerable amount of ammunition, were found," federal prosecutors said.
A working group was set up in the aftermath of the massive immigration raid at a Hyundai plant in Georgia, where hundreds of South Korean workers were arrested.
The rock art was used to mark the location of water sources in an illustration of how ancient people tackled some of Earth’s most inhospitable environs.