Mexican authorities have begun filling a tunnel crossing the border with the U.S. that experts say was likely used to smuggle drugs as well as VIP migrants paying tens of thousands of dollars to enter the country.

A secret tunnel discovered last week on the U.S.-Mexico border will be sealed by Mexican authorities, an army official in Ciudad Juarez said Saturday.

A secret tunnel used to smuggle migrants and contraband between Mexico and the United States has been discovered and will be sealed, according to Mexican border authorities. The 300-metre-long tunnel connects Ciudad Juarez in Mexico with El Paso, Texas, two neighbouring cities on either side of the US-Mexico border.

A hidden cross-border tunnel used to smuggle migrants and contraband between the US and Mexico will be sealed, Mexican border officials have said.

Mexican authorities have begun filling in an underground smuggling tunnel that stretches from Juarez to South Central El Paso.