New Orleans attacker Shamsud-Din Jabbar acted alone and planted "remote detonator" explosives inside coolers in two nearby locations in the French Quarter, just a few hours before he drove a pickup truck at a high rate of speed into a crowd of people celebrating New Year's on Bourbon Street, President Biden said at a news conference Thursday.

"We have no information that anyone else was involved in the attack," Biden said during a news conference about his administration's 235 judicial confirmations. "They've established that the attacker was the same person who planted the explosives in those ice coolers in two nearby locations in the French Quarter, just a few hours before he rammed into the crowd with his vehicle. They assessed he had a remote detonator in his vehicle to set off those two ice chests."

NEW ORLEANS ATTACK: INSIDE BOURBON STREET TERRORIST'S HOUSTON HOME

Biden stated that federal agents are investigating potential links to the Las Vegas explosion, also probed as a terror attack, and urged them to "accelerate" their efforts. Fourteen people were killed, and Jabbar died in a shootout with police. 

"As of now, they've just been briefed," Biden said. "They have not found any evidence of such a connection thus far. I've directed them to keep looking." 

The FBI identified Jabbar as the driver who crashed a rented truck into a crowd of New Year's revelers on Bourbon Street in New Orleans. The bureau told congressional lawmakers on Thursday that it had zero information about Jabbar prior to his attack. They also said that while Jabbar has said he was "inspired" by ISIS, investigators have not found any evidence that he was directed by ISIS.

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New Orleans hospitals treated a total of 37 victims who were injured in Wednesday's attack. LCMC Health has not stated how many of those injured have since been discharged, nor has it clarified the condition of those still hospitalized.

Authorities had been investigating a potential military connection between Jabbar and the Las Vegas suspect, who law enforcement identified to The Associated Press as Matthew Livelsberger.

"As you know, there's also an FBI investigation in Las Vegas. We are following up on all potential leads and not ruling anything out," FBI Deputy Assistant Director of the Counterterrorism Division Christopher Raia told reporters Thursday. "However, at this point, there is no definitive link between the attack here in New Orleans and the one in Las Vegas."

Jabbar, a U.S. native born in Texas, had previously served in the U.S. military. Authorities are still investigating how and when he became radicalized.

Fox News Digital's Anders Hagstrom and Danielle Wallace contributed to this report.