The Oklahoma Medical Examiner's Office says the official death toll in the aftermath of a massive tornado that slammed the Oklahoma City area remains at 51 but is expected to rise.
 
A spokeswoman tells The Associated Press that officials could see as many as 40 more deaths from the Monday's twister.
 
The tornado tore through parts of suburban Oklahoma City on Monday afternoon, flattening entire neighborhoods with winds up to 200 mph and landing a direct blow on an elementary school in Moore. At least 20 of the confirmed dead are children.