Story highlights US agents found a cross-border tunnel from Mexico to San Diego SaturdayThey arrested 30 illegal immigrants suspected of using the tunnel(CNN) US agents have arrested 30 illegal immigrants thought to have crossed into San Diego through a cross-border smuggling tunnel from Mexico, US Customs and Border Protection (CBP) said. The agents discovered the tunnel after encountering several people who had apparently just been smuggled into the California city, near the Otay Mesa port of entry, early Saturday, CBP said. "US Agents searched the area and discovered a crude opening in the ground with a ladder inside and determined that is was a smuggling tunnel. The tunnel's exit is located just north of the secondary fence in the vicinity of the Otay Mesa port of entry," it said in a statement. However, as this case demonstrates, law enforcement has also identified instances where such tunnels were used to facilitate human smuggling," it said.

Source: CNN August 27, 2017 06:00 UTC