Islamic State (IS) militants reportedly attacked a power station in the Iraqi city of Kirkuk today.
Reports claim at least 13 workers were killed when the suicide bombers stormed the facility and blew themselves up.
It is believed to be aimed at diverting security forces from a massive offensive against IS-held city of Mosul.
The oil-rich city is around 290 kilometres north of Baghdad and is claimed by both Iraq’s central government and the nation’s Kurdish region.
Crude oil production facilities were not said to be targeted.