Authorities at Texas Tech University say an explosion inside a maintenance hole set off fires and power outages on the campus, leading school officials to issue evacuation orders for several buildings

An explosion on the Texas Tech University campus in Lubbock set off fires and power outages Wednesday, leading school officials to issue evacuation orders for several buildings and cancel classes for the rest of the week.

Texas Tech and Lubbock officials have provided a timeline and preliminary details as to what led to the overnight fires and explosions on campus.