A three-alarm fire Wednesday morning damaged 14 units - destroying six - at a Town 'N Country apartment complex, Hillsborough County Fire Rescue said. It was the second fire in three months to drive tenants from their homes at the Harbour Walk Tampa Apartments on Crystal Harbour Drive. The fire's cause remained under investigation. Nearly 20 people were displaced, but no injuries were reported. Another fire was reported at the complex Feb. 9. At that time, eight apartments were destroyed, displacing 29 people.