Omaha Fire Department officials have concluded that the deadly explosion that leveled an Omaha home Monday was accidental.

OFD Investigators finished their investigation Wednesday. Investigators said on Saturday July 23rd the tenant was moving personal belongings out of the residence. One of the last items removed from the house was the gas clothes dryer. Officials believe the dryer was disconnected from the gas line supplying it by one of the persons helping with the move. The gas line that supplied the dryer was not shut off, leaving it to flow natural gas into the structure.

Two men returned to the home later Saturday and noticed a natural gas smell, and notified the tenant. The tenant then notified the property management company of the situation by leaving a voice mail message on Clara Bender’s work phone late Saturday night. Officials said it is unknown if Clara ever received that message.

Jeremy Aspen, president of Certified Property Management said Wednesday that when tenants sign a lease, they agree to call MUD or 911 when they smell gas, but that's not what happened.

"What ensued was a catastrophic penalty that nobody deserved," said Aspen.

The explosion occurred on Monday shortly before 12:30 p.m. While Bender was inside, the gas and air mixed to a point where the atmosphere entered into an explosive range and came into contact with an ignition source, causing the explosion.

"You know I know that MUD does do PSA's, they have campaigns to let people know if you smell gas, call,” said Aspen. "MUD was the one that ultimately going to be able to handle this, and they should have been able to handle this. If there was a gas leak, MUD would have wanted to know about it. They just never got a chance to hear about it because we never heard."

Investigators believe Clara was in the kitchen of the home at the time of the explosion. Investigators could not determine the exact ignition source.

She was taken to Nebraska Medical Center in critical condition where she later died.

"We will do everything we can to make sure that something like this, couldn't happen again or at least reduce the chances even more," Aspen told WOWT 6 News.

Bender leaves behind a son and husband. A

account has been created for Clara's family.

Two others, who were outside of the home, were injured including a 14-year-old boy. He was seriously hurt and taken to the hospital privately.

Report of house explosion near 65th & Sprague Posted by Collin Ruane on Monday, July 25, 2016