VIDEO: A bridge over Tempe Town Lake has caught on fire and partially collapsed after a train derailed.
Tempe Fire Department officials say the derailment happened around 6 a.m. on July 29 and involved a Union Pacific train. At least 90 firefighters are on the scene. One person is being treated of smoke inhalation, officials say.
Officials with Union Pacific say eight to ten rail cars caught on fire. Three tank cars fell into the park below; two of them contained cyclohexanone with the third containing a rubber material.
Cyclohexanone is a flammable, colorless oily liquid, and nearly 95% of its manufacturing is used to make nylon, according to the National Library of Medicine.
None of the rail cars are reported leaking, and the cause of the derailment is under investigation.
The bridge had recieved its yearly inspection on July 9, train officials say.