Pulitzer-Prize winning undocumented journalist Jose Antonio Vargas, who is also the founder of "Define American," has been detained while covering the immigration crisis involving Central American child refugees on the Texas-Mexico border.

Vargas, who has been on a crusade to elevate the conversation about immigration across the country and received support from CNN, which recently aired his powerful film, "Documented," is literally on the front lines of the immigration crisis himself. Like in his personal and riveting documentary, he is trying to take charge of his narrative and tell the story from within.

On Tuesday, Vargas was detained by U.S. border officials while trying to fly from McAllen Airport to Los Angeles and was taken to the McAllen Border Patrol Station, according to Lara Drasin, a representative for the group Define American.

Before the incident earlier on Tuesday, Vargas tweeted that he was about to go through security at McAllen-Miller International Airport. Since outing himself as an undocumented immigrant three years ago, he says he has traveled extensively, visiting 40 states, CNN reports.

There was inital concern from Vargas' supporters that he might encounter some problems in this heavily-patrolled part of the country. Vargas tweeted that he had his Filipino passport and a copy of the U.S. Constitution in his possession.

"In the last 24 hours I realize that, for an undocumented immigrant like me, getting out of a border town in Texas — by plane or by land — won't be easy. It might, in fact, be impossible," he wrote.

Cristina Jimenez, managing director of United We Dream, said Vargas' arrest highlighted the struggles many undocumented immigrants face, The Huffington Post reports.

"We stand in solidarity with Jose Antonio and demand for his immediate release, but we must remember that there are thousands of people along the border that live with this same fear every day," Jimenez said. "Once again, the Border Patrol has proven to be a rogue agency after arresting Jose Antonio, a low-priority case for detention and deportation."

Any word from the White House? Reportedly, White House Press Secretary Josh Earnest declined to comment on Vargas' detention during the daily White House briefing on Tuesday.

An inquisitive Pulitzer Prize-winning journalist, Vargas worked for the Washington Post, where he acquired a reputation for breaking news coverage on the Virginia Tech shootings. He landed the cover of TIME Magazine and profiled Facebook founder and CEO Mark Zuckerberg for The New Yorker. He's even been named one of "50 Politicos to Watch," by Politico, among many other notable achievements throughout his career.

"Journalism is everything I have ever had; it's been my church," he said at a screening of his film "Documented" on April 17 at the Museum of the Moving Image in Long Island City, New York, which Latin Post attended.

The compelling film "Documented" begins in 2011, when Vargas outed himself as an undocumented immigrant in an essay published in The New York Times Magazine, a move that would thrust him into the spotlight and forever change his life.

He delves into his personal journey to America from the Philippines at the age of 12, when he came to live with his grandparents who legally immigrated to the U.S. While living with the hope that his mother would someday join him, there have been too many legal obstacles for her to come to the U.S.

Unaware of his undocumented immigration status until he was refused a driver's license at the age of 16, Vargas lived his life in secrecy and used his education and the arts as an outlet. Besides his grandparents, he was embraced by his school and community, who essentially became his adopted family. He led a double life and longed to fit in; he was embarrassed by his Filipino culture, which he fully embraces today.

In the film, Vargas transforms from a journalist to an immigration reform activist as he embarks on a cross-country journey to promote the DREAM Act. His emotional journey led him to reconnect with his mother, whom he had not seen in person in over 20 years. As seen in "Documented," every time Vargas boards a plane, he takes on the risk of possible deportation while flying domestically — a fear that has been brought to the surface with his recent detainment.

"I am privileged to still be in America, my home, and privileged to put 'Documented' on the screen," he wrote in an earlier report for CNN.

A video was released by the South Texas newspaper The Monitor that shows Vargas displaying his documents to airport security before being detained.