Four units in an Aurora multi-family residence were heavily damaged after a fire broke out Thursday night. Aurora Fire Rescue responded to a fire in the 100 block of South Sable Boulevard around 10 p.m. Thursday, near City Center Park, according to a news release from the fire department. The fire department did not confirm whether or not the blaze was started by fireworks. When fire crews arrived, they found a strong fire in the back of the building, extending into the attic space, the release stated.