The United States on Wednesday designated Tren de Aragua, the Sinaloa Cartel and other drug cartels as global terrorist organizations, according to a Federal Register notice, a move that comes as President Donald Trump steps up immigration enforcement against alleged gang members in the U.

The designation opens the door for possible financial sanctions against the groups and those who are linked to them.

Mexico President Claudia Sheinbaum said on Thursday she will propose a constitutional reform aimed at further protecting Mexico's national sovereignty, after the U.S. designated various Mexican cartels as foreign terrorist organizations.

The US decision has sparked concern in Mexico, with officials fearing it could be a precursor to potential military action.