60,000 minors expected to cross border this year

It's a growing problem: the influx of undocumented children, mostly from Central America, attempting to cross the southern border into the United States.

Holding centers are at capacity, which has forced the government to open makeshift facilities.

El Salvadoran girl's illegal migration highlights America's 'urgent' problem

And the problem is not going away any time soon - 60,000 minors, as young as 4, are expected to cross into America this year.

Martin Savidge traveled to McAllen, Texas to get a first-hand look at the crisis.