Breaking: Evacuation order issued for Port Adelaide fire burning sulphur

An evacuation order has been issued for a chemical fire at Port Adelaide.  (Supplied: Tim Whitrow)

Emergency services have issued an evacuation order for an "extremely dangerous" fire burning in a structure containing sulphur at Port Adelaide.

The SA Metropolitan Fire Service were called out to a structure fire this morning, which was "burning sulphur" and "producing large amount of smoke".

Anyone located within one kilometre of Moonta Rd at Port Adelaide should leave immediately.

"Emergency services are on scene, the smoke is consider toxic," the MFS said.

People are being advised to avoid the area.