Oklahoma City, OK - Oklahoma City fire crews responded to a house fire on the southwest side late Saturday night.

Initial calls said there were people trapped inside but after a quick search firefighters say they didn't find anyone. Fire crews say this isn't the first time the vacant home has caught on fire.

"This house has been used, according to the neighbors, this house has been used for homeless people as a shelter," said Russel Huffman with OKC Fire.

The home is considered to be a total loss. The cause is still under investigation.