GLOBAL OUTAGES

- Major banks, media, airports and airlines affected by major IT outage

- Payment systems impacted in different parts of the world, including Australia and the UK.

- Australia's government calls for emergency meeting

- Significant disruption to some Microsoft services

- 911 services disrupted in several US states including Alaska, Arizona, Indiana, Minnesota, New Hampshire and Ohio.

- Services at London Stock Exchange disrupted

- Sky News is off air

- Reports the issue relates to problem at global cybersecurity firm Crowdstrike