[Update 3:07 p.m.] Virginia Tech has lifted an alert on campus hours after three youths reported that someone may have had a gun there, according to a post on the school's website.
"There will continue to be a large police presence on campus today," the announcement said. "Police
have not received nor discovered additional information about a person possibly carrying a weapon beyond that reported this morning.
"The university community may resume normal campus activity. Only Blacksburg campus classes have been cancelled today."
[Update 11:16 a.m.] Virginia Tech Police Chief Wendell Flinchum warned students and others to continue to stay indoors as police search for a person who may be carrying a weapon on campus.
Several people have been questioned but police have not apprehended anyone, Flinchum said.
[Update 11:09 a.m.] No one is in custody and the campus safety alert remains in effect, Virginia Tech's campus police chief says.
[Update 10:31 a.m.] Virginia Tech is in lockdown as authorities look for a man three youths said may have had a weapon, possibly a handgun.
The white male was described as having light brown hair and being 6 feet tall and was walking in the direction of a volleyball court. The man was wearing a blue and white striped shirt, gray shorts and brown sandals. He had no glasses or facial hair, according to the report.
[Original post, 10:18 a.m.] Virginia Tech, the site of a 2007 massacre, has issued an alert saying someone is possibly carrying a weapon on campus.
Regular classes aren't in session at the moment, but there is summer school. The university in Blacksburg, Virginia, is asking people on campus to stay inside and secure doors. The person was spotted near Dietrick Dining Hall.
In April 2007, Cho Seung-Hui, 23, shot dead 32 people on campus before killing himself.
Are you on campus? Share your account, but please stay safe.