Squatters are being blamed for starting a house fire at an abandoned home on Stockton Boulevard Thursday morning. Witness Derique Warren told News10 they knew people were trapped inside.

"We first kicked the back door in, that's when we saw the fire was really bad," he said. 

Firefighters treated four people from inside the home for smoke inhalation. They praised neighbors for helping the squatters make it out alive. The damaged home is now beyond habitable and boarded up.