London's Heathrow airport is closed after a major fire at an electrical substation caused a power outage.
120 flights were in the air and had to be turned around or diverted.
Heathrow is Europe's busiest airport.
UK Correspondent Gavin Grey talks to Ryan Bridge about the shutdown, why former Scottish leader Nicola Sturgeon's no longer under investigation, and Finland's ranking as the world's happiest country.

Gavin Grey: UK correspondent on the upcoming court ruling on Marine Le Pen
04:04

Shane Solly: Harbour Asset Management expert on the 'volatile' state of AI-based investments
03:33

Louise Tanguay: Sleep Store co-founder and director on the company turning 20
06:24