Shaq Davis Arizona Daily Star Dec 5, 2019
#TucsonSector Border Patrol agents with the cooperation of Mexican Federal Police located an illicit cross-border tunnel on the west side of Nogales on Wednesday. This is the 125th tunnel discovered by Border Patrol since 1990.
Authorities found the incomplete tunnel, over three-feet-wide and four-feet-tall, running underneath the Nogales streets extending 20 feet into the U.S. on Wednesday, a CBP news release said.
The tunnel was located about 10 feet underground concealed in the floor of an existing drainage system with dirt and a Styrofoam, concrete mixture.
More:
https://tucson.com/news/local/u-s-border-agents-mexican-police-find-illegal-cross-border/article_e29b6f06-1781-11ea-9a57-63d05d85d97d.html