The New York City Police Department and the FBI are seeking information about a person of interest in connection to Tuesday's terror attack in lower Manhattan. The FBI released a poster Wednesday for Mukhammadzoir Kadirov, a 33-year-old Uzbekistan national.

Kadirov has not been named as an official suspect in the incident, but authorities said they were interested in acquiring information on him and his whereabouts.

"Law enforcement officials are seeking the public's assistance with information about Mukhammadzoir Kadirov in relation to the deadly attack in the Tribeca neighborhood of New York City, New York, on October 31, 2017," the FBI's poster read.

Sayfullo Saipov, 29, was named as the first suspect in the deadly attack that has claimed the lives of eight people and injured more than a dozen.

PLEASE SHARE: FBI, NYPD are seeking to question Mukhammadzoir Kadirov, in connection with yesterday’s terror attack in lower Manhattan pic.twitter.com/XY0IMQLohL — New York City Alerts (@NYCityAlerts) November 1, 2017

Saipov was shot in the abdomen by Officer Ryan Nash, 28, moments after he crashed a pickup truck into a crowd of pedestrians. The suspect also rammed the rental truck into a school bus. Saipov managed to survive the incident and was quickly taken into custody.

Five Argentinian high school students, two young American men and a Belgian mother were identified by the police as victims of the attack.

"Yesterday was a painful day for our city. We are keeping victims and their families in our thoughts and prayers," New York City Mayor Bill de Blasio wrote Wednesday on Twitter. "An act of terror was intended to break our spirit, but we know New Yorkers are strong and resilient. We will be undeterred."

Yesterday was a painful day for our city. We are keeping victims and their families in our thoughts and prayers. https://t.co/9ul0DruHel — Bill de Blasio (@BilldeBlasio) November 1, 2017

An act of terror was intended to break our spirit, but we know New Yorkers are strong and resilient. We will be undeterred. — Bill de Blasio (@BilldeBlasio) November 1, 2017

The incident is being investigated as an act of terror.

"You have to understand that this investigation is still in its infancy," NYPD Police Commissioner James P. O'Neill said in a Wednesday press conference. "We do not yet have all of the answers, and there are details today, and there will be more down the road — and not everything we're going to be able to share with you."

O'Neill added, "We are working hard to get to the bottom of exactly what happened yesterday, and why. And we're working tirelessly to prevent anything like this from getting repeated."

President Donald Trump also confirmed Tuesday that his administration would "provide its full support" to the NYPD and FBI's joint investigation.

Saipov came to the U.S. in 2010 from Uzbekistan. The Department of Homeland Security claimed that Saipov was on a diversity immigrant visa, which is a program intended to give up to 50,000 individuals annually a green card. These visas are awarded randomly to encourage immigration in territories that aren’t heavily represented in America.

Saipov, a former Uber driver, was not present on any U.S. terrorism watch lists prior to Tuesday's attack. He was initially believed to have acted alone.