President Donald Trump on Monday pushed for immigration restrictions following an attempted terror attack in one of New York City's busiest transportation hubs.

"First and foremost, as I have been saying since I first announced my candidacy for President, America must fix its lax immigration system, which allows far too many dangerous, inadequately vetted people to access our country," Trump said in a statement.

On Monday morning, 27-year-old Akayed Ullah detonated a pipe bomb strapped to his body in a walkway connecting subway lines near the Port Authority Bus Terminal and Times Square. Ullah, an immigrant from Bangladesh, suffered burns, and at least three other people had minor injuries.