Iraq has been unwillingly drawn into the war started by Israel and the US on February 28, with strikes targeting both US interests and pro-Iran groups in the country.

The alliance, also known as the Popular Mobilisation Forces (PMF), is now part of Iraq's regular armed forces although it also contains pro-Iran factions.

Two fighters, including a commander, were killed in two strikes on a position in Tal Afar district in Nineveh Governorate, near the Syrian border, a PMF statement said.

It said four were wounded in the "treacherous Zionist-American attack".

Earlier, an official with the group had put the number of wounded at six.

Earlier, a drone attack near Erbil, capital of the northern autonomous Kurdistan region, caused a massive fire at the storage facilities of an engine oil firm.

Erbil hosts a major US consulate complex, while its airport houses military advisers attached to a US-led international anti-jihadist coalition. Both have been regularly targeted since the outbreak of war.

Erbil's governor Omed Khoshnaw said the attack had started at around 7:00 am local (0400 GMT) and that four drones had targeted the facility.

He said a double-tap attack had occurred "while the teams were still working, the same site was attacked by another drone".

A fourth drone was "destroyed mid-air before reaching its target", he said.

Iraqi firm Sardar Group confirmed in a statement that the facility, a warehouse located around five kilometres (three miles) from Erbil, was attacked.

It said there were no casualties.

The strike followed a heavy night of attacks near the regional capital, with Khoshnaw saying some 20 drones had been shot down over the city.