The teen that Australian police shot dead after a stabbing incident in Melbourne was a "known terror suspect" who was involved in national security issues.

The incident comes on the heels of an announcement about a possible terror attack in Australian soil by supporters of the extremist group Islamic State, also known as Daesh. It is yet to be confirmed if the teen was acting independently or in collaboration with the terror group, Voice of America detailed.

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Police asked Abdul Numain Haider, 18, to come over on Tuesday to Endeavor Hills police station in Victoria to be questioned over his suspicious behavior. He had reportedly been shouting out insulting things about the Australian government and Prime Minister Tony Abbott.

When two officers came near him, he stabbed them and one was injured "very seriously." Victoria Police Chief Commissioner Ken Lay narrated.

One officer fired his weapon in self-defense and killed the teen, police said. The two officers' conditions are now stable.

The said Haider's passport had been canceled over security issues, according to Australian Federal Police Acting Commissioner Andrew Colvin.

"He is someone who's been known to us for some time," Colvin said of Haider."...I think it's fair to say he is a person of interest for national security reasons."

Authorities are now trying to confirm local reports about Haider being seen recently holding an Islamic State flag. He was of Afghan origin and had been linked to Melbourne-based radical Muslim organization al-Furqan, the Australian Broadcasting Corporation said.

Earlier this week, Daesh urged its members to kill Australian, Canadian, French, and other citizens supporting the U.S.-led coalition against it. Australia agreed to deploy 600 troops and 10 aircrafts to assist the coalition in fighting the terror group in Syria and Iraq.

Australian police also launched a major counter-terrorism raid last week after receiving intelligence about Daesh order to perform a "demonstration" killing in the country.

The Australian government estimates there are about 60 of its citizens fighting with Daesh, and 100 more are backing the Sunni Muslim group from within the country.

TagsAustralia, Daesh, national security, Crime Prevention, Security, War Conflict