Morning Top 5: Chemical attack in Syria; North Korea; and back to school costs

The top stories this Wednesday morning...

Syria's government is denying the use of chemical weapons on its own people, after rescuers reported that barrels of chlorine were dropped on the town of Saraqeb, in the rebel-held Idlib province.

More than 30 people, mostly women and children, needed treatment for breathing problems.

It comes as citizens of Aleppo refuse to use so called humanitarian corridors to escape the city, saying they can't trust that they'll survive the journey.

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North Korea has test-fired a ballistic missile towards the Sea of Japan.

South Korea's defence ministry says it was launched from the west of the country this morning.

It's the latest in a series of ballistic missiles fired by the North in defiance of UN Security Council resolutions.

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Parents are facing costs of nearly €800 to send their child to secondary school.

The annual Barnardos school costs survey released today, shows parents are spending €340 to send a senior infants pupil back to school, but that cost rises to €775 for a first year pupil in second level.

These figures only take account of basic costs such as clothing, footwear, books, resources and voluntary contributions.

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Four people are due to appear in court in Dublin this morning, charged in connection with a post office robbery in Co. Louth.

Three men and a woman were arrested following a robbery in Clogherhead on May 3rd.

The men, aged 30, 33 and 42, and a 23-year-old woman, were arrested in the Louth area on Monday morning.

A number of premises were searched in the Drogheda area in connection with the investigation.

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Executed Easter Rising leader Roger Casement will be remembered on the centenary of his death today.

He was the final 1916 leader to be put to death and the only one executed outside Ireland, when he was hanged at Pentonville Prison in London.

His body was returned in 1965 and was brought back through Baldonnel air force base, where there will be commemorations later.

There'll also be a State ceremony in Glasnevin Cemetery in Dublin.