Morning top 5: Dublin Bus strike continues; Brazil seek another Irish man; NASA's unmanned mission

The top stories this Friday morning...

400,000 commuters face disruption again this morning, as the Dublin bus strike enters its second day.

The NBRU union representing drivers say they are ready to see the pay dispute through to the 'bitter end'.

Two more 48-hour strikes are planned for this month amid calls for a 15% wage hike.

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Police in Brazil say they want to speak to another member of the Olympic Council of Ireland.

Officials say they want to interview Martin Burke - the OCI Sports Director - as part of their inquiries into allegations of ticket touting at the Rio games.

Police say new evidence has emerged in a trawl of computer files which have been uncovered as part of the investigation.

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45 people have spent the night stranded in cable cars high over the French Alps.

They got stuck because of a technical problem yesterday.

Rescue efforts were abandoned because of darkness and bad weather.

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North Korea has confirmed it's conducted a fifth nuclear test, with state TV calling the blast 'successful'.

Meteorological agencies detected the earth shaking violently near the secretive country's known test site.

South Korea says it is the North's largest-ever explosion.

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NASA has launched a potentially ground-breaking mission, as an unmanned spacecraft took off from Florida's Cape Canaveral.

It is heading to collect dust and gravel from the surface of an asteroid, bringing samples back in a couple of years.

Scientists say there is a slim chance the asteroid could crash into Earth in about 150 years.