One of three victims in a shooting on the campus of Old Dominion University in the US state of Virginia has died, the university's police said on Thursday.

An earlier alert from the university said that two people were injured and the shooter was neutralized.

At a news conference Thursday afternoon, Garrett Shelton, the university's chief of police, said that there was a third victim who went to the hospital independently, noting that the two surviving victims appear to be in stable condition.

FBI Director Kash Patel noted that the FBI is now investigating the shooting as "an act of terrorism."