LUBBOCK, Texas (AP) — The power started to come back on Thursday at the Texas Tech University campus in Lubbock several hours after an explosion inside a maintenance hole set off fires and power outages, leading school officials to issue evacuation orders for several buildings and cancel classes for the rest of the week, university police said.

The explosion happened Wednesday evening at the Engineering Key section of campus, which was evacuated. Students were advised Thursday to avoid the area until further notice.

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