A routine immigration inspection at the Falfurrias checkpoint this morning led to the seizure of a potentially deadly drug.
U.S. Border Patrol agents were inspecting a passenger bus when their dog alerted them to something in the luggage compartment.
More than 10 pounds of fentanyl was found hidden inside a suitcase.
No one on board the bus admitted owning to owning it.
The fentanyl is valued at nearly $400,000.