Australia stepped up security around Parliament House on Thursday and Prime Minister Tony Abbott expressed solidarity with Ottawa after a gunman attempted to storm Canada's legislature.

Justice Minister Michael Keenan said the government would boost  security measures around Canberra's parliament buildings on top of a recent tightening of measures imposed after Australia last month raised its terror alert level from "medium" to "high".

President Barack Obama thanked Australian Prime Minister Tony Abbott for his country's "significant" support in the coalition fighting against the Islamic State jihadist group in Iraq, the White House said Wednesday.

In a telephone conversation with Abbott on Tuesday, Obama praised Australia for its role in Iraq, which has included airstrikes as well as a commitment to deploy around 200 special forces to assist Iraqi troops.

An independent Australian lawmaker said Wednesday he had asked the International Criminal Court to investigate Australia's hardline asylum-seeker policies as alleged "crimes against humanity".

Andrew Wilkie said he had resorted to the measure after years of attempting to change the practice of asylum-seekers who arrive by boat being sent into detention on Pacific camps.

A teenager who ran away from Australia to join jihadists in Iraq and Syria has reappeared months later in a video of the Islamic State group, vowing to "not stop fighting", reports said Tuesday.

The 17-year-old, named in local media as Abdullah Elmir but who calls himself "Abu Khaled", carried a rifle and directly addressed Australian Prime Minister Tony Abbott in the video reportedly posted online, the Sydney Morning Herald said.

Australia's foreign minister said Sunday she had reached a deal with Baghdad for the deployment of about 200 special forces to assist Iraqi troops in their fight against jihadists.

Julie Bishop told reporters in Baghdad she had met top officials to hammer out a deal allowing Australian commandos who have been waiting in the United Arab Emirates to deploy to Iraq.

Russian President Vladimir Putin was cooperative and constructive when asked for his help in allowing investigators access to the MH17 crash site in Ukraine, Australian Foreign Minister Julie Bishop said Saturday.

Bishop met the Russian leader on the sidelines of the Asia-Europe Meeting, just days after Australian Prime Minister Tony Abbott warned he would confront Putin over the shooting down of the plane at a G20 meet next month.

A man arrested in Australian counter-terrorism raids in September is facing fresh charges of preparing a terrorist attack on home soil, police said on Friday.

Agim Kruezi, 22, was initially accused of recruiting, funding and sending jihadist fighters to Syria after he was detained in Brisbane on September 10.

Australian Treasurer Joe Hockey confirmed Sunday Vladimir Putin will attend the G20 leaders' summit in November, despite concerns about Russia's actions in Ukraine in recent months.

Australia's confirmation that the Russian leader would attend the high-powered summit came after Ukraine's President Petro Poroshenko said he would also meet Putin next week.

A 27-year-old Lebanese student accused of marrying and having a sexual relationship with a 12-year-old girl in Australia has pleaded guilty to the crime, Australian dailies reported Thursday.

The man, who was not named, was visiting Australia on a student visa when he married the girl during an Islamic ceremony in the Hunter Valley in the state of New South Wales in January, they aid.

A Super Hornet fighter jet has carried out Australia's first bombing raid in Iraq, targeting what the defense ministry on Thursday described as a "facility" of the Islamist State group.

"Overnight the Australian Air Task Group operating in the Middle East attacked its first target in Iraq," the ministry said in a statement.