They are piling up in Mexico:

One morning in January, five men from Nepal showed up at the Casa del Migrante in Tijuana, looking for a bed for the night.

That’s odd, the shelter’s director, Father Patrick Murphy, remembers thinking.

This border city has been a gateway to generations of migrants fleeing poverty and violence in Mexico and Central America, people dreaming of a better life in the United States.

But Nepal was 8,000 miles away. What were they doing here?

Within months, Tijuana would be teeming with migrants from across the globe — from Haiti, India, Bangladesh and various parts of Africa — all hoping to reach the U.S…

A member of Cameroon’s English-speaking minority, the 25-year-old had been jailed twice for supporting a banned secessionist movement…

In all, it took Ngunyi two months to reach Mexico and cost him nearly $10,000. It was mid-May when he landed in Tijuana, and the early morning chill made him shiver.

He tried to hire a taxi from the airport to the border, but got into an argument with the driver, who… pushed him out of the car…

There was a long line of people waiting to use the pedestrian crossing at San Ysidro. He walked to the front and told the first police officer he saw: “I want to request asylum in the United States.”

“Do you see people like you here?” the officer barked at him. He was sent to the back of the line.