evidence: A tornado in North Carolina severely damaged a Pfizer plant, damaged several other structures, shut down a major interstate and injured at least 16 people Wednesday afternoon. [...] Some structures in the tornado’s path were flattened. Pfizer’s Rocky Mount facility suffered severe damage – video from helicopters showed the roof crumpled like paper and building debris scattered into the surrounding parking lot. There were no reports of injuries at the plant, according to a statement from the company. [...] The tornado toppled trees onto Interstate 95, the North Carolina Department of Transportation said, shutting the highway down in both directions for at least an hour before reopening.