[outages] ATL [55 Marietta] Power Issue - FireDept on-site

My understanding is that power in select portions of 55 Marietta has been severed by automated fire-protection equipment and the fire-department as of roughly 4PM eastern. All of our primary and secondary services are currently out on the 5th, 6th and 18th floor. Anyone else have any additional information they may be able to provide by chance? We have staff on-site and have been told by the fire-department that we cannot enter the building itself until the site has been cleared.