On Monday night, fire officials gave an update to Rocky Mount leaders about the Dec. 18 fire at the QVC plant — which was declared the largest structure fire in North Carolina's history.

Fire crews spent 10 days and over 722 hours battling the fire, officials said.

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Rocky Mount Fire Department Battalion Jamey Cooke said at this point, the fire has not been ruled arson.

"We've not been notified of anything from ATF or any other investigating agency. [We're] still right where we were from the beginning," said Cooke.

But, Cooke said he's determined to find a concrete answer about what started the fire.

"What the ATF will do is continue to follow leads and hopefully with this reward being posted they'll get more leads in," said Cooke.

On Monday night, Cooke gave an extensive presentation to Rocky Mount City Council about the role fire crews played in battling the fire. Cooke said assistance came from more than 74 fire departments across 20 counties, as well and state and federal agencies.

"If you work in a facility- any facility - whether it's one as large as QVC or one as small as a grocery store, if you have a fire alarm or fire drill, pay attention to them, do as you're asked and exit the building. That makes a difference — it really does," said Cooke.

The fire's intensity took out a lot of water. Cooke said at one point, fire crews lost all municipal water supply to the facility.

"Every fire we go to is a learning experience," said Cooke.

Cooke said some of the challenges fire crews faced included the fire having a large head start and the main natural gas line being damaged when the QVC building's roof collapsed, which caused a fire hazard on the northeast side of the building.

"We'll be more in-depth in our training and speaking with our county reps about doing more intense training," Cooke added.

When the fire started, 284 employees were working and were able to get out safely, except for 21-year-old Kevon Ricks.

Ricks' body was found more than 180 feet away from a doorway. Fire crews initially stopped their search for his body due to the dangers in the building.

"If you know something, [you] need to come forward and let the ATF," said Cooke.

A reward of up to $20,000 is being offered for information about what caused the fire at QVC.