Watch KOFR-TV’s live coverage of the Oklahoma tornado aftermath here.

UPDATE 9:40 a.m. ET:

The state medical examiner has revised the death toll down to 24, and the number of children killed is at seven. See our story here.

UPDATE 8:12 a.m. ET:

KFOR-TV offers a tragic update — the death toll is now confirmed at 91 and the injury number has also risen:

Officials have confirmed at least 91 people have been killed in the Moore tornado Monday.

The medical examiner’s office confirmed at least 233 people have been injured.

That number is expected to rise as recovery efforts continue Tuesday morning and daylight arrives.

UPDATE 7:44 a.m. ET — President Obama will deliver an address to the nation at 10 am ET from the State Dining Room, CNN says.

Additionally, CNN is reporting via KFOR-TV that the tornado reached two miles wide at one point.

UPDATE 12:53 a.m. ET — Amy Elliot, the chief administrative officer of the Oklahoma office of the Chief Medical Examiner, told CNN’s Piers Morgan that 40 additional bodies have been discovered — bringing the death toll to at least 91.

Elliot said she still expects the death toll to increase significantly. The official death toll remains at 51.

20 Children Die in Oklahoma Tornado

Teachers carry children away from Briarwood Elementary school after a tornado destroyed the school in south Oklahoma City, Monday, May 20, 2013. A monstrous tornado roared through the Oklahoma City suburbs, flattening entire neighborhoods with winds up to 200 mph, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

Appearing live on CNN Monday night, Amy Elliot, the chief administrative officer of the Oklahoma office of the Chief Medical Examiner, confirmed that 51 people are dead in the aftermath of the massive tornado outside of Oklahoma City. Tragically, at least 20 of those who died are children, she added.

Elliot also said the medical examiner’s office has received calls from officials informing them to expect even more victims.

Seven children were killed at Plaza Towers Elementary School in Moore, Okla., according to a police official. CNN reports that emergency personnel were searching through the rubble at the school looking for additional children.

At least 145 people have been hospitalized in the Oklahoma City area following the deadly twister, hospital officials said.

Some of the children who died were reportedly found in a pool of water where they had apparently drowned, KFOR-TV’s Scott Hines reported on CNN Monday night.

20 Children Die in Oklahoma Tornado

A boy is pulled from beneath a collapsed wall at the Plaza Towers Elementary School following a tornado in Moore, Okla., Monday, May 20, 2013. A tornado as much as a mile (1.6 kilometers) wide with winds up to 200 mph (320 kph) roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

20 Children Die in Oklahoma Tornado

A child is pulled from the rubble of the Plaza Towers Elementary School in Moore, Okla., and passed along to rescuers Monday, May 20, 2013. A tornado as much as a mile (1.6 kilometers) wide with winds up to 200 mph (320 kph) roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

20 Children Die in Oklahoma Tornado

A woman carries a child through a field near the collapsed Plaza Towers Elementary School in Moore, Okla., Monday, May 20, 2013. The relationship between the woman and the child was not immediately known. A tornado as much as half a mile (.8 kilometers) wide with winds up to 200 mph (320 kph) roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

20 Children Die in Oklahoma Tornado

A woman carries an injured child to a triage center near the Plaza Towers Elementary School in Moore, Okla., Monday, May 20, 2013. A tornado as much as a mile (1.6 kilometers) wide with winds up to 200 mph (320 kph) roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

20 Children Die in Oklahoma Tornado

Teachers carry children away from Briarwood Elementary school after a tornado destroyed the school in south Oklahoma City, Okla, Monday, May 20, 2013. Near SW 149th and Hudson. Credit: AP

20 Children Die in Oklahoma Tornado

A boy is pulled from beneath a collapsed wall at the Plaza Towers Elementary School following a tornado in Moore, Okla., Monday, May 20, 2013. Credit: AP

20 Children Die in Oklahoma Tornado

A child calls to his father after being pulled from the rubble of the Tower Plaza Elementary School following a tornado in Moore, Okla., Monday, May 20, 2013. A tornado as much as a mile (1.6 kilometers) wide with winds up to 200 mph (320 kph) roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

20 Children Die in Oklahoma Tornado

A teacher hugs a child at Briarwood Elementary school after a tornado destroyed the school in south Oklahoma City, Monday, May 20, 2013. A monstrous tornado roared through the Oklahoma City suburbs, flattening entire neighborhoods with winds up to 200 mph, setting buildings on fire and landing a direct blow on an elementary school. Credit: AP

Hines got choked up as he described the scene and the additional children who are feared dead. Watch the video via CNN below:

This story has been updated.

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