LINCOLN, Neb. -- The return of very cold temperatures and wind added to the difficulty of extinguishing a house fire in Lincoln. 

Firefighters were called to a home on fire in the Irvingdale neighborhood, near 19th and Ryons early Tuesday morning. 

Crews arrived to heavy fire coming from the home, but deteriorating weather conditions inside forced firefighters to attack flames from the outside. 

No injuries were reported. 

An investigation into what started the fire is ongoing.