Morning top 5: Donald Trump fires acting US Attorney General; student charged over Canadian mosque attack

The top stories this Tuesday morning...

Donald Trump has fired the acting US Attorney General overnight for questioning the legality of his immigration ban.

Just hours before she was sacked, Sally Yates had told lawyers at the Department of Justice not to defend the executive order in court.

She was appointed by President Obama, but has been replaced by Dana Boente - who quickly reversed Yates' order.

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The Minister for Foreign Affairs Charlie Flanagan heads to Washington today for a series of meetings with political and business leaders.

The Minister will meet US congressional leaders including Speaker of the House Paul Ryan.

Here, this morning's cabinet meeting's expected to be dominated by Donald Trump's immigration controls.

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Canadian authorities have charged a student with six counts of murder after an attack on a mosque.

27 year-old Alexandre Bissonnette is also accused of five attempted murders following the shootings in Quebec City on Sunday.

Police say he acted alone.

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Angela Kerins will find out later this morning if she has won her legal action against the 2014 Public Accounts Committee.

The former CEO of the Rehab Group claims its members acted beyond their powers by publicly asking her about her salary and bonus payments.

She is seeking damages for loss of reputation and the impact it had on her health.

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The EU Commissioner behind the Apple tax ruling is to appear before the Oireachtas Finance committee later.

Competition Commissioner Margarethe Vestager will be outlining the EU position on the ruling that ordered Ireland to recoup €13 billion in tax from Apple.

The government is appealing the decision - and rejecting the Commission's finding that Ireland gave Apple preferential tax treatment.