NEW : The school initiated its emergency plan -- including communicating to students , faculty and staff via Twitter , Facebook and text messages . Lockdown is over , classes will be back in session Friday , school website says . A letter to a college administrator threatened violence today , a spokeswoman says . There have been no reports of deaths or injuries , Betheny Hall adds .
NEW : Lockdown is over , classes will be back in session Friday , school website says . A letter to a college administrator threatened violence today , a spokeswoman says . There have been no reports of deaths or injuries , Betheny Hall adds .