A leading Iraqi expert on Islamic State and other militant groups has been shot dead in Baghdad after receiving threats from Iran-backed militias, security officials have said.

Gunmen on a motorcycle opened fire on Hisham al-Hashimi, 47, on Monday outside his home in the Zeyouneh area of Baghdad, a family member said, speaking on condition of anonymity for security reasons.

The family member heard five shots fired. Al-Hashimi was later pronounced dead at a hospital.

Al-Hashimi was a respected security analyst who appeared regularly on Iraqi television and whose expertise was sought out by government officials, journalists and researchers.

Read more: The Guardian (UK)