Soldiers with the Iraqi special forces look out on ISIS positions from a rooftop in west Mosul as fighting continues, Monday, April 24, 2017.

:: Flaunting new arms it first announced in late April, ISIS has posted images showing its use of a rocket-mounted vehicle in a suicide bombing in northwestern Mosul.

The images showed the attacker inside the vehicle before he carried out the attack targeting Iraqi forces, the vehicle advancing on its target and the detonation he purportedly orchestrated.

But they did not illustrate the novel feature ISIS had advertised as key to the new weaponry – the firing of rockets mounted on the vehicle.

The group had said this would maximize destruction caused by the attacker as he advanced towards his target.

ISIS attacks kill two at Iraqi base

At least two people were killed and six injured when multiple ISIS suicide bombers attacked a base in northern Iraq where US military advisers are stationed, security sources said on Sunday.

In addition, two of the militants died when they detonated their vests at the entrance to the K1 base overnight, and three more were killed by Kurdish peshmerga forces who control the Kirkuk area where it is situated.

“They were wearing uniforms like the Kurdish peshmerga and had shaved their beards to look like us,” one officer told Reuters.

ISIS claimed responsibility for the attack in a statement, saying it had killed and wounded dozens of “crusaders and apostates,” referring to the peshmerga and Western military advisers.

Iraqi forces backed by a US-led coalition are fighting to dislodge ISIS from Mosul, 140 km northwest of Kirkuk, but large pockets of territory remain under militant control, including Hawija, which is near the targeted base.