Authorities said initially that as many as 51 people were dead, including 20 children. Oklahoma State Medical Examiner's office spokeswoman Amy Elliot said Tuesday morning that she believes some victims were counted twice in the early chaos of the storm.
Elliot said during a press conference they believe the death toll will increase.
Citing officials with the Oklahoma Highway Patrol, our NBC affiliate in Oklahoma City, KFOR, reported early Tuesday morning that search crews found 101 people alive overnight amid the rubble.
Rescue crews were well underway on a second sweep of affected neighborhoods, focusing on storm shelters where people may be trapped. The goal is to search every area three times.
The tornado flattened homes and hit two elementary schools head-on around 3 p.m. Monday.
All students of Briarwood Elementary School in Moore were accounted for by Monday evening.
The search and rescue effort at Plaza Towers Elementary School transitioned to a recovery effort hours after the storm. Seven children there were found dead in a pool of water in the elementary school rubble. Moore police said Tuesday everyone at the school had been accounted for.