UPDATE: 25 Dead, At Least 22 Injured at VT Shooting

The count of 25 dead and at least 22 injured has been confirmed by ABC.

Reports have the FBI joining in the investigation.

"He was horrified and his immediate reaction was one of deep concern for the families of the victims, the victims themselves, the students, the professors and all of the people of Virginia who have dealt with this shocking incident," White House spokeswoman Dana Perino said, concerning President Bush's reaction.

AP:

Aimee Kanode, a freshman from Martinsville, said the shooting happened on the 4th floor of West Ambler Johnston dormitory, one floor above her room. Kanode's resident assistant knocked on her door about 8 a.m. to notify students to stay put.

"They had us under lockdown," Kanode said. "They temporarily lifted the lockdown, the gunman shot again."

"We're all locked in our dorms surfing the Internet trying to figure out what's going on," Kanode said. Madison Van Duyne, a student who was interviewed by telephone on CNN, said, "We are all in lockdown. Most of the students are sitting on the floors away from the windows just trying to be as safe as possible."