It may be weeks before investigators determine what caused a deadly house fire in Cheyenne Thursday morning.

"We're asking people who might have taken pictures of the fire to send us copies," said Scott Smith, Public Information Officer for the City of Cheyenne. "We're just trying to get an idea of what the fire looked like before Cheyenne Fire and Rescue got on scene."

Pictures can be sent to CFR prevention@cheyenne.city.org.

"The investigation is still ongoing," said Smith. "I'm going to guess it'll be another week or two before we know anything."