Former Vice President Joe Biden called the rollback of the Deferred Action for Childhood Arrivals program "inhumane" and "not America."

"Imagine a young girl, age 4 or 5, traveling with her parents into the United States as they make the hard decision to pursue a better life here," Biden said in a statement on Tuesday. "Imagine that child growing up as your student, your co-worker, your friend. Because of the president's decision today, she now must live in fear that she will soon be thrown out and sent back to a country she has never known."

"These people are all Americans. So let's be clear: throwing them out is cruel. It is inhumane. And it is not America," he added. "Congress and the American people now have an obligation to step up and show our neighbors that they're welcome here, in the only place they've ever called home."

Former President Barack Obama, who created the program in 2012, also expressed his disapproval of rescinding DACA.

"To target these young people is wrong — because they have done nothing wrong. It is self-defeating — because they want to start new businesses, staff our labs, serve in our military, and otherwise contribute to the country we love. And it is cruel," Obama said in a Facebook statement on Tuesday.

Attorney General Jeff Sessions announced Tuesday DACA would end under the Trump administration within six months, allowing Congress time to pass legislation if lawmakers so desire.

Obama established DACA through an executive order. It applies to approximately 800,000 illegal immigrants ages 15-36 who arrived in the United States as children and meet other conditions.