Editor's note: More than four years after a deadly rampage at VA Tech, news broke today of two dead after a shooting incident on campus. One of the fatally wounded was a VA Tech police officer. Tune in to AC360 at 8 p.m. ET for details from our reporter on the ground.
A Virginia Tech police officer was among two people killed Thursday on the school's campus, prompting a sweeping search and school-wide lockdown that lasted over four hours.
Around 4:30 p.m., the school in Blacksburg, Virginia, announced on its Twitter feed that "law enforcement agencies have determined there is no longer an active threat or need to secure in place. Resume normal activities."
Police said the incident started shortly after noon, when the police officer made a traffic stop in the Coliseum parking lot near McComas Hall. During that stop, a person who wasn't involved in the traffic stop approached and shot the officer, authorities said.
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