Police have discovered and sealed an unfinished tunnel dug under a residential complex in southern Shenzhen City which was to be used smuggling goods from Hong Kong, Legal Daily reported. The tunnel in the Changling village area in Shenzhen was about 40 meters long, 0.8 meter wide and 1 meter tall. It was so narrow that only one person could crawl through, according to the report. Interior lighting, ventilation, carts, track, ropes and pulleys to transport smuggled goods were already inside the facility, it reported.