The Maclaurin Building is shown on the campus of the Massachusetts Institute of Technology February 22, 2006 in Cambridge, Massachusetts. (Photo by Joe Raedle/Getty Images)
Reports of a gunman carrying a long rifle at The Massachusetts Institute of Technology were unfounded, police said.
Initial reports said a man carrying a rifle and wearing body armor was spotted in a campus building, and the school was placed on lockdown.
Cambridge Police tweeted at 10:19 that the scene was all clear. Police searched the school's Main Group Building, where the gunman was reportedly seen, but did not find anyone.
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