A tornado outbreak ripped through several states Friday night, decimating towns and killing at least 88 people, according to CNN. The National Weather Service recorded more than 35 tornadoes across Kentucky, Arkansas, Illinois, Indiana, Mississippi, Missouri, Ohio, and Tennessee.

Kentucky Governor Andy Beshear has confirmed 74 deaths, with most of the devastation concentrated in the western part of the state. Gov. Beshear said Monday that 105 people remain unaccounted for.

Over 100 employees were working the night shift at a Mayfield, KY, candle factory when the tornadoes hit. The facility was completely flattened, according to NPR. More than 50,000 residents across the state of Kentucky still have no electricity after Friday night’s tornadoes.

“Thousands of homes are damaged if not entirely destroyed and it may be weeks before we have final counts on both deaths and levels of destruction,” Gov. Beshear said.

The National Weather Service confirmed that an EF3 tornado with wind speeds between 136-165 miles per hour tore though an  Amazon distribution center in Edwardsville, Illinois. It caused 150 yards of the building to collapse and killed six people. The Occupational Safety and Health Administration has since opened an investigation into potential structural issues with the warehouse.

Many have raised doubts as to whether Amazon provided sufficient shelter or directed workers to designated safe areas soon enough. Clayton Cope, one of the six employees who died Friday night, spoke to his parents just before the tornado hit. Based on that conversation, his sister said she did not believe workers were advised to shelter in place immediately after the first warning siren, according to the BBC.