(MYFOXDC) — The number of children caught crossing the U.S. border has surged over the last two years, raising questions about whether the Obama administration’s changing immigration policies are creating a magnet.

Statistics released late last week show 24,668 “unaccompanied alien children” were placed last year in the care of the federal agency that, by law, is responsible for them. That’s nearly double the number from 2012, and nearly quadruple the number in years past.

As is often the case with immigration statistics, it’s unclear what is driving the increase. The surge could be driven in part by better enforcement, and immigration officers doing a better job catching border crossers.

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