He is said to have told officers that he was hearing voices and had expected to die. The serious injuries included pelvic fractures, internal bleeding and head injuries.
He said he saw about five people who looked gravely injured - "people, really bad, in front of us".
Police are considering the possibility that Thursday's deadly crash in Times Square was a deliberate act, two law enforcement sources said.
Social media images show injured people on the street, a vehicle upended at an angle and crowds gathered in the heart of the tourist hub.
The New York Times reports that during his press conference the Honda could be seen laying titled against bollards, its right wheels were in the air and its hood had crumpled.
A law enforcement official says a auto that plowed into a crowd of pedestrians in Times Square killed one person and injured about 20 others.
The speeding auto jumped the sidewalk on the west side of 7th Avenue at 42nd Street and barreled into pedestrians for three blocks before crashing at the northwest corner of 45th Street, police said. Lowe says the driver then got out of his vehicle and started running until people tackled him. Her 13-year-old sister was transported to a hospital. After the crash, the driver climbed out of the vehicle and began to run away, witnesses and police said. Rojas also expressed his desire to end lives by proclaiming, "I wanted to kill them!" At first, I thought someone was intentionally doing it.
When Long went outside and looked in the direction the auto had gone, she saw at least six people lying on the ground, including a woman lying face-down with blood pouring from her head.
Elizabeth Long, of Dayton, Ohio, told CNN she was walking to the Hard Rock Cafe when she saw a maroon auto heading toward her on the sidewalk. "I'm so freaked out", the daughter said.
In 2014, Abu Mohammed al-Adnani, spokesman of ISIS ("Islamic State in Iraq and Syria) called for attacks on citizens of Western countries, and gave instructions on how they could be carried out without military equipment, using rocks or knives, or by running people over in vehicles".
Alyssa Elsman, 18, was a kind, compassionate student known around the school for selling delicious muffins she baked in a cooking class, principal Eric Alburtus said. "I don't think there was actually time for screaming". "She said Rojas" family is Dominican and that his mother is a "sweetheart" who sometimes makes food or coffee for the beauty salon's workers. It is unclear at this time what condition her sister is in, though four of the injured are in critical condition, according to officials. "She would always text me back as quick as she could and when I didn't hear from her or her friend, I knew something frightful happened", West said.
Before striking pedestrians, the auto was "out of control", an emergency management official said.
Within moments of the incident, New York Governor Andrew Cuomo and Mayor de Blasio rushed to the scene.
The White House said President Trump was informed of the situation in Times Square and would continue to be briefed as it unfolded.
"He's been going through a real tough time", he said.
He pleaded guilty to driving while under the influence of alcohol after the 2008 arrest and had his license suspended for 90 days, according to the Queens District Attorney's office. Many, but not all, sidewalks are lined with barricades and planters for fear of vehicle attacks.