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ISIS flagReuters

The Syrian army said on Wednesday it had killed Islamic State's (ISIS) military commander in Syria during operations in the north of the country, Reuters reported.

A Syrian military source told Reuters the ISIS commander, Abu Musab al-Masri, had been the group's "minister of war" for Syria.

He was named among 13 senior ISIS figures killed in Syrian army operations east of Aleppo, including men identified as Saudi and Iraqi nationals, said a Syrian military source cited by state media.

A previous ISIS minister of war, Abu Omar al-Shishani, was killed last year. The Pentagon said Shishani was likely to have been killed in a U.S. air strike in Syria.

Al-Masri becomes the latest senior ISIS member to have been killed in Syria and Iraq. Last month, deputy ISIS leader Ayad al-Jumaili was killed in an air strike carried out by the Iraqi air force in the region of al-Qaim, near the border with Syria.

In October of 2016, ISIS confirmed the death of its propaganda chief, Wa'il Adil Hasan Salman al-Fayad.

His death followed that of ISIS spokesman Abu Mohamed al-Adnani, who was killed in an American air strike on August 30.

The fate of ISIS leader Abu Bakr Al-Baghdadi remains unclear. There have been several reports in recent months suggesting that Baghdadi had been injured or even killed in coalition air strikes, but none of those reports have been confirmed.