Morning top 5: Mexico death toll climbs; terrorism and social media; and Dáil returns after summer

The top stories this Wednesday morning

At least 224 people have been killed by a powerful earthquake in Mexico, including 21 children in a collapsed school.

Thousands have been forced onto the streets after the 7.1 magnitude quake struck the country's capital and central region.

Elsewhere, the second maximum strength hurricane this month is battering the Virgin Islands and threatening Puerto Rico.

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World leaders are going to demand social media companies remove terrorist content within a couple of hours of it appearing.

British Prime Minister Theresa May, along with the French president and Italian prime minister, are raising the issue at the United Nations later.

It could include fines for companies which fail to remove terrorist propaganda online.

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It is the Dáil's first day back after the summer break and tax will be high on the agenda.

Finance Minister Paschal Donohoe wants to widen tax bands in the budget and he has got the backing of business group, IBEC.

But Fianna Fáil says the cutting the USC has been agreed and is set down in the Confidence and Supply Agreement.

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A third man has been arrested in connection with a terror attack on the London Underground that left 30 people injured.

The 25-year-old was held in a counter-terrorism raid in Newport, south Wales, shortly after 7.00pm on Tuesday.

A spokesman for the Metropolitan Police said a building in the city was also being searched.

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It is day two of the National Ploughing Championships after a record start yesterday.

Over 112,000 people passed through the gates in Screggan in Co Offaly.

Opening the event on Tuesday, President Michael D Higgins said farming has to be protected as a way of life.