The father of the Afghanistan-born suspect in the New York-area bombing attacks over the weekend told police two years ago that his son was a terrorist, a move that then prompted a federal review, the New York Times has reported.
The Times, citing two senior law enforcement officials, reported that the father had told police in 2014 when his son, Ahmad Khan Rahami, was arrested after a domestic dispute and accused of stabbing his brother that he was a terrorist.
The newspaper also reported that another official said when Mr Rahami was captured on Monday he was carrying a notebook containing writings sympathetic to jihadist causes.
Mr Rahami, 28, is in critical but stable condition in a hospital, according to police.
He was wounded in an exchange of gunfire yesterday with police in Linden, New Jersey, just four hours after the FBI released his photo and sent text message alerts to millions of people.
"Critical but stable," New York police commissioner James O'Neill told CBS News when asked if the suspect would likely survive.
Mr Rahami was shot multiple times and underwent surgery yesterday, the local prosecutor said. He has been charged on five counts of attempted murder of a law enforcement officer and two unlawful weapons counts.
More charges were expected to be brought against Mr Rahami in federal court.
New York City Mayor Bill de Blasio called the bombing last Saturday night "an act of terror."
Police are still investigating the motives behind the bombings in the New York neighbourhood of Chelsea, which injured 29 people, and a pipe blast at a US Marine Corps race on the Jersey shore.
Officials say that Mr Rahami travelled "extensively" to Afghanistan and Pakistan in recent years, but have not yet found evidence linking him to militant groups such as the so-called Islamic State or the Taliban.
US security sources have confirmed that he underwent secondary screening after returning from foreign travel in recent years and passed on every occasion.
Passengers coming from Afghanistan and Pakistan, which both have a strong Taliban presence, are routinely required to undergo secondary screening.
CNN has reported the Mr Rahami's wife left the United States a few days before the bombings took place.
"It's a good sign that we found him in a doorway," Mr O'Neill told CBS This Morning.
"Hopefully that means he had nowhere to go."
Mr Rahami is also suspected of planting a bomb that exploded on the New Jersey shore on Saturday, a device found near the New York blast, and up to six more devices found near the Elizabeth train station on Sunday night.
All of the people injured in the blast have been released from hospitals.
The bombings and subsequent manhunt prompted even greater security in New York.
The largest US city was already on high alert for a gathering of world leaders at the United Nations for the annual General Assembly this week. An additional 1,000 officers were deployed.
Mr Rahami had not previously been identified as dangerous, but Elizabeth police knew of his family because of late-night noise and crowd complaints at its halal chicken restaurant.
