OKLAHOMA CITY - The Oklahoma City Fire Department responded to a fire at the First National Center downtown. 

According to OKCFD, the fire was confined to a pipe chase between the 25th and 26th floor. The building is currently under renovation and the fire is believed to have been electrical.

OKCFD said there was smoke on other floors as well and crews are currently searching for any additional fires. 

We will update this story as it develops.