Bolt criticises starting blocks at world championships

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Under former US President Donald Trump thousands of migrant families were split up at the US-Mexico border. A special task force has been working to reunite children with their parents, but it's got a long way to go.

The leader of the Catholic Church travels to Juba along with the Archbishop of Canterbury and the moderator of the Church of Scotland. The three leaders are hoping to push for peace amid continued fighting.

From the depths of the Pacific Ocean comes an innovation in air conditioning that's good for the planet and saves money. Located just 200 metres from the ocean, the hospital in Papeete, on the French island of Tahiti, is using seawater to cool its facilities. The switch to this new system has decreased the hospital's energy consumption by 90 percent.

Pension problems: French workers strike over government's retirement plans. As many as 2.8 million people hit the streets across France on Tuesday in a second day of walkouts designed to protest the latest pension reform proposals.

Several European countries, including Germany, temporarily shut their consulates in Istanbul this week, citing security concerns. Turkey says they are waging "psychological warfare."