VIDEO: Officials are investigating the cause of a fire near a Norfolk business Thursday evening. Norfolk Fire Captain Lannce Grothe says the Fire Division was called out to Progressive Nutrition in east Omaha Avenue in Norfolk for a report of a semi on fire. When firefighters arrived around 8 p.m., they saw flames and smoke coming from the semi. They had the blaze under control within five minutes, but not before the fire destroyed the semi and its contents and damaged nearby equipment. No one was hurt.