Update (8:18 a.m.): One lane of I-40 West has been opened up, according to Sergeant David Sanders of KPD. 

However delays are still expected for the next couple of hours as KFD and TDOT work to get all lanes of traffic opened back up.

All lanes of I-40 West near Union School Road are temporarily closed right now due to a bus fire. 

Knoxville Fire Department is on the scene and is working to extinguish the fire. 

Knoxville Police Department is reporting that all occupants of the bus are off safely.

They are also reporting that the I-40 west-bound should be opening back up shortly. 

As we learn more, we will keep you updated as this story continues.