Police are warning residents in Leeds city centre to keep windows and doors closed due to "potentially hazardous" chemicals at the site of a large fire at Albion Way industrial estate.
In a statement, West Yorkshire Police said: "Police were called at about 2.34 am this morning to respond to the incident which is taking place at a business on the site. A number of fire engines are currently attending.
"Due to the potentially hazardous nature of chemicals on the site residents in the city centre area are being asked to keep windows and doors closed while the cause of the fire is assessed.
"As a precaution, due to smoke, the Armley Gyratory road is currently being closed for the safety of drivers."