Militants storm Iraq gas compressor station - security sources

A sign of the AB2 gas compressor station is pictured after militants attacked the station, northwest of Kirkuk, Iraq, July 31, 2016. REUTERS/Ako Rasheed

KIRKUK, Iraq (Reuters) - Islamic State militants stormed two energy facilities in northern Iraq on Sunday, killing at least five workers and shutting down a major oil pumping station, security and oil sources said.

The first attack, on the AB2 gas compressor station, about 15 km (10 miles) northwest of Kirkuk, started around 0300 (0000 GMT) when four gunmen with hand grenades broke through an external door in an attack that left two guards in critical condition.