HS2 has completed the first tunnel cross passages. Credit: High Speed Two Ltd. UK-based High Speed 2 (HS2) has concluded work on the first of 38 underground connections between the northbound and ...

Cross passages between both bores of London's 0.7-mile Silvertown tunnel are nearing completion in frozen ground, marking the end of excavations on the River Thames crossing. The $1.5-billion ...

Federal agents have shut down a nearly 3,000-foot-long tunnel connecting Tijuana and San Diego that officials say was being built to smuggle drugs into the U.S. The passage, discovered in April and ...

SAN DIEGO (AP) — U.S. authorities on Monday announced the discovery of a major drug smuggling tunnel — running about the length of six football fields — from Mexico to a warehouse in an industrial ...

U.S. authorities on Monday announced the discovery of a major drug smuggling tunnel — running about the length of a six football fields — from Mexico to a warehouse in an industrial area in the U.S.