Agents found one of the longest drug tunnels ever built between the US and Mexico

US and Mexican authorities say they have discovered one of the longest drug tunnels between the two countries.

The tunnel even had lighting, metal beams for support, and a rail car system.

Produced by Lamar Salter

Follow BI Video: On Facebook

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.