Mexico cooperating with U.S. but more work needed on drugs, says Rubio

U.S. Secretary of State Marco Rubio said on Thursday that cooperation with Mexican authorities has improved and he sees tangible results on migration, but that work still needs to be done on curtailing the flow of illegal drugs.

U.S. President Donald Trump's administration has used the threat of tariffs to pressure Mexico, its top trade partner, to do more to curb drug trafficking and migrants crossing the shared border.

"We have seen a level of cooperation from the Mexican authorities that we have never seen in the past, but it is not enough," Rubio stated in a Fox News interview.

Rubio stated that while the number of migrants illegally crossing into the U.S. at the southern border has significantly decreased, quantities of drugs entering the country have not varied.