Mexican authorities intercepted yet another cargo trailer loaded with migrants on Monday, according to the country's security ministry.

A routine road inspection led to the discovery of 228 people, mainly Central American migrants, hidden inside a soft drink truck in southern Chiapas state.

The incident follows a separate human smuggling case on Sunday where 51 Central American migrants, including 21 children, were detected by giant X-ray scanners inside a tractor trailer at a checkpoint in Zacatecas state. 

The crackdowns signal a ramped-up effort by the Mexican government to curb the flow of undocumented migrants before they reach the U.S. southern border.

Mexico began using its security forces to intercept more undocumented migrants crossing through its territory after a June 7 deal with the U.S. that averted tariffs on Mexican goods threatened by U.S. President Donald Trump.

Migrant deportations by the Mexican government have steadily increased since January, with more than 50,000 people returned to their countries.