An Australian member of Isil and his two young Australian sons have reportedly been killed in a coalition airstrike in Syria.

Khaled Sharrouf, an Australian of Lebanese descent, was Australia’s most infamous jihadist and became known worldwide in 2014 after he made one of his sons pose with the severed head of a Syrian soldier. “That’s my boy,” he wrote on social media.

Australian officials believe Sharrouf was killed along with his sons Abdullah, 12 and Zarqawi, 11, according to the ABC, Australia’s public broadcaster. The boys were both Australian citizens.

Sharrouf, 36, was raised in Sydney but was stripped of his Australian citizenship in February because of his support for terrorism.