Authorities foiled a New Year’s Eve terror plot by arresting a man who allegedly planned to commit an attack in upstate New York on behalf of the Islamic State, federal prosecutors said.

The Department of Justice alleges Emanuel L. Lutchman, a 25-year-old from Rochester, was planning an “armed attack” at a restaurant and bar in the city tonight, according to a news release. Prosecutors said Lutchman claimed the attack was ordered by a member of the Islamic State overseas, and the attack was to be “on behalf of (ISIS) and in furtherance of his plan to join” the group.

“The FBI thwarted Emanuel Lutchman’s intent to kill civilians on New Year’s Eve,” FBI Special Agent in Charge Charles Cohen said in a statement.  “The FBI remains concerned about people overseas who use the Internet to inspire people in the United States to commit acts of violence where they live.”

The formal charge against Lutchman is attempting to provide material support to the Islamic State, according to the news release, and he faces 20 years in prison and a $250,000 fine if convicted.

The arrest comes in the wake of the of revisions to the National Terrorism Advisory System, which the Department of Homeland Security uses to warn Americans about terrorist threats.

The changes, implemented about two weeks after the San Bernardino mass shootings, give Homeland Security officials the ability to issue bulletins about the general risk of terrorist attacks, according to a news release from the department. Under the previous system, officials could only issue alerts if there were credible or imminent threats against the United States, the department said, and the circumstances never once warranted issuing an alert.

The current bulletin, issued Dec. 16 and still in effect, says the department has concerns about attacks from “self-radicalized actor(s) who could strike with little or no notice,” especially because foreign terrorist groups are using the Internet to spread their messages globally.