PHOTO: Firefighters are battling a chemical leak at an Amazon warehouse in west Phoenix. Capt. Todd Keller with the Phoenix Fire Department said an unidentified chemical is burning in a trailer on the property near 75th Avenue and Van Buren Street. Video from the scene showed a large amount of smoke coming from the area where trucks are stored at the warehouse. There are no reports of any injuries a this time. Keller said all surrounding buildings within 1,000 yards of the area are being evacuated.