In response to a record number of child migrants leaving Central America en route to the U.S., Mexican authorities have increased efforts along popular migration routes and have reduced the number of migrants.

Mexico's federal police and immigration service have increased scrutiny on the infamous freight train known as La Bestia -- Spanish for The Beast -- on top of which migrants have long ridden illegally to get to the U.S., according to The Associated Press.

Authorities have begun plucking migrants from the train and sending them to deportation centers. They have also instituted road blocks to check the documents of people riding on interstate bus routes.

News of the train raids and checkpoints have spread throughout Central America and families increasing are deciding to skip the journey to the U.S.

"The word spreads, one person tells another, and it goes down the line," said Carlos Solis, manager of a deportation shelter in Arriaga. "They're also going after the coyotes, so it is increasing the cost of the trip and making them move through less visible areas."

The immigration decline is a start reversal from earlier in the year, when the border situation was dubbed a humanitarian crisis. U.S. President Barack Obama said that immigration numbers in August are way down from what they had been, according to the Daily Mail.

"We're seeing a significant downward trend in terms of those unaccompanied children," Obama said on Thursday.

From October through July, around 63,000 unaccompanied children were detained after illegally coming into the U.S. from Central America, twice as many as the same period in the previous year. It is estimated that thousands of undocumented immigrants slipped through the cracks.

In July, about 13,000 children were detained crossing the U.S. border illegally -- either alone of with a parent -- about half the number detained in June. The number of Central American children also has fallen in Mexican shelters near the U.S. border, further indicating that fewer non-Mexican Central Americans are making the trip.