In the middle of answering a medical call, a fire truck split in half after crashing into a tree at Crescent Avenue and Los Altos Drive.
"It was going very fast and when it got onto the side street it was on two wheels. I guess it tried to correct itself and ended up wrapped around the tree," said witness Karvinna Briese.
Jonathon Cutler said he heard a loud boom and felt his house shake.
"I come running outside and I see firemen coming out the front side of the truck," said Cutler. "The fireman sat right here on my grass and he looked all dazed out, kind of confused a little."
Four firefighters, including two paramedics were hurt, but they are expected to survive. No civilians were involved in the crash.
"We have a very big crash behind us with no major injuries so that's the good news," said Capt. Marc Stone with the Orange County Fire Authority.