Morning top 5: Trump immigration speech; abortion helpline launched for Irish women

The headlines this Thursday morning...

Donald Trump has dismissed the Mexican president's warning that his country will not pay for a wall along the US border to clamp down on illegal immigration.

"They don't know it yet, but they're going to pay for it,” he said just hours after making a surprise visit to Mexico to meet with President Enrique Peña Nieto.

The Republican candidate was in bombastic form back on home soil in Arizona as he unveiled a hard-hitting plan to curb illegal immigration from the Americas.

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Ministers are to take further legal advice from Attorney General Máire Whelan after failing to reach a decision on their response to the Apple tax ruling.

Cabinet members spent over five hours debating the government response to the European Commission findings yesterday.

Fine Gael ministers support a challenge to the judgement, but the Independent Alliance wants the Dáil recalled to debate the issue, if they are to back an appeal.

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A free telephone aftercare helpline for Irish women who have bought abortion medication online has been launched by a UK charity.

The British Pregnancy Advisory Service is extending the service to women in the Republic, Northern Ireland and the Isle of Man who have obtained pills from online not-for-profit clinics.

It said pills purchased online from Women Help Women and Women on Web provide a “safe, effective alternative” for women unable to travel for an abortion.

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A cure for Alzheimer's could soon become a reality following trials of a drug that fights sticky deposits in the brain linked to the disease.

According to a leading UK charity, the research provides "tantalising evidence" Alzheimer's could become treatable with the antibody aducanumab.

Although currently available treatments can help reduce symptoms of the disease, there has until now been nothing which can halt or slow its progress.

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A new president has been sworn in in Brazil after Dilma Rousseff was removed from office.

The country's senate voted to impeach her over claims that its first first female leader manipulated the budget.

She has been replaced by former vice-president Michel Temer, who has run the country since Ms Rousseff was suspended in May.