THE Northern Lights were visible across Scotland on Friday night, with another stunning display looking likely to return on Saturday.

The National: The Northern Lights above Arthur's Seat in EdinburghThe Northern Lights above Arthur's Seat in Edinburgh (Image: Jane Barlow / PA)

Friday’s activity marks the biggest geomagnetic storm in 20 years, making for some remarkable sights up and down the country.

Here are some of the best pictures sent in by readers.

The National: Granton Harbour, Edinburgh (Patrick Elsamma Martin)

The National: Dunbar, East Lothian (heartandscroll via Instagram)

The National: Wishaw, North Lanarkshire (Kayleigh via Instagram)

The National: Luss, Loch Lomond (William Gibson)

The National: Newarthill, Motherwell (Stephen McCaw)

The National: Burrelton, Perthshire (Angela via Instagram)

Don't forget, you can send us your pictures on Instagram @scotnational.