Gavin Grey: UK correspondent on the ongoing investigations into the Louvre heist

A rare daylight robbery has been executed at the world's most visited art museum. 

Items of 'incalculable' value were stolen in a seven minute heist at the Louvre museum in Paris - just after it opened. 

The thieves rode a basket lift up the museum's facade, forced a window and fled with France's Crown and Napoleonic jewels.

UK correspondent Gavin Grey unpacked the ongoing investigation.

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