Mexico has sent 26 inmates suspected of playing high-profile roles in some of the country's most powerful drug cartels to the US, the second transfer of its kind this year.
US officials said the individuals extradited included "key operatives" of major drugs gangs, and have been charged with violent offences or links to organised crime in American courts.
Mexico said the individuals - who have not been publicly identified - represented "a permanent risk to public security".
The latest prisoner transfer came as the White House continued to put pressure on its southern neighbour to crack down on drug trafficking across the shared border, including by imposing tariffs on some products.
Mexican officials said they had agreed the inmates could be sent to the US as long as none were considered eligible for the death penalty, a condition successive governments have insisted on when considering extraditions.
