WICHITA, Kan. (KSNW) — Fire crews battled a massive house fire on Broadway between Lincoln and Kellogg early Friday.

The fire started around 5:15 a.m. in the 900 block of S. Broadway.

Upon arrival, crews could see smoke and flames coming from the second floor of a two-story house and its roof.

Firefighters entered the house and began searching for people and attacking the fire. Crews were later advised to leave the house due to the instability of the home.

It took crews about an hour to get the fire out.

Firefighters tell KSN News that they have responded to a call at this home before.

“This house has burned four, three times, previous, so we were able to get in and get a primary of the first floor and second floor to check for any victims,” said Battalion Chief Terry Gresham.

Investigators determined the structure to be a vacant and unsecured home.

“This evidence would not allow investigators to determine whether the fire was started accidentally or was set intentionally. Therefore, the cause of this fire will be classified as undetermined, pending new information. No injuries to fire personnel or civilians were reported.” said the Wichita Fire Department.

Investigators are aware that people frequent the home for shelter and believe someone lit a fire to stay warm.