The wreck happened around 11 a.m. on South Dawson Street at South Street near downtown Raleigh as the crew was responding to a house fire call.
Three of the firefighters were injured and two of them were taken away from the scene by ambulance. A police spokesperson said none of the injuries are life-threatening.
On Saturday, all three firefighters were released from the hospital.
Police say their preliminary investigation shows the driver in the front and the driver in the back of the ladder had a miscommunication about which direction they were turning.
It's a tiller truck, which has two drivers -- one in the front and one in the back. Because of the dual operation, the drivers must be in constant communication. It also means that the drivers have to do the opposite of one another while driving.
The truck is stationed at Station One, one of Raleigh's busiest stations, and was placed into service in 2004. The vehicle is valued at $750,000. There's no word on if it can be repaired.