Rescue workers are near the end of the search for survivors in the Oklahoma City suburb where a rare and powerful tornado claimed 24 lives, injured at least 230 and left dozens missing. Police said thunderstorms and lightning slowed the rescue effort on Tuesday, but 101 people had been pulled from the debris alive. After nearly 24 hours of searching, Moore’s fire chief said he was confident there were no more bodies or survivors in the rubble. The Oklahoma medical examiner’s office said on Tuesday that nine children were among those confirmed dead. President Barack Obama had promised earlier to make available all necessary government resources to Oklahoma to help in the rescue and recovery effort. “The people of Moore [Oklahoma] should know that their country will remain on the ground, beside them, for as long as it takes,” Obama said at the White House. The US president called the devastation as “one of the most destructive tornados in history”, even though he said the extent of the damage was still unknown. Obama spoke on Tuesday after an Oval Office briefing on the latest developments from his disaster response team and as Federal Emergency Management Agency Director Craig Fugate was heading to Oklahoma. Moore was strewn with debris and many residents were without power and water in the structures left still standing in the most severe of a series of savage storms to hit the state on Sunday and Monday. The tornado razed two schools and ripped off the roof of a medical centre. Scientists concluded the tornado was an EF5 on the enhanced Fujita scale, the most powerful type, capable of lifting reinforced buildings off the ground, hurling cars like missiles and stripping trees completely free of bark. The amount of energy released dwarfed the power of the atomic bomb that levelled Hiroshima.