Emily AtkinsonLive page editorIt remains a little unclear exactly what caused the global IT outage that grounded thousands of flights, stalled banking and healthcare services, and badly hit other sectors today. While there are signs of the chaos lifting, the question over quite how long the impacts persist remains - Crowdstrike says it could take "some time". We're ending our live coverage now, but there's plenty on offer across the BBC to keep you updated in our absence:What caused the outage? This minute-long video takes you through the main developmentsThis minute-long video takes you through the main developments Has your flight been disrupted? Follow our continuing live coverage hereThis page was edited by Dulcie Lee, Aoife Walsh, Owen Amos, Barbara Tasch and Emily Atkinson.
