A police officer was shot at Virginia Tech on Thursday morning and campus officials warned everyone to seek shelter while an armed suspect was at large.
"We don’t know if the suspect fled or the extent of the injuries to the suspect or to the officer," NBC News’ Pete Williams told MSNBC TV.
"This was a traffic stop on campus," Williams said. "It was not someone walking around firing shots."
A second victim was at a campus parking lot, CBS television station WDBJ reported.
A Virginia Tech alert described the suspected shooter as a white male wearing gray sweat pants, a gray hat with a neon green brim and a maroon hoodie, and carrying a backpack.
A Virginia Tech alert posted on the school's website said the suspect was last seen walking toward McComas Hall, which is the main gym on campus, about two blocks from Lane Stadium.