In Pictures

Nacreous clouds: Your photos

nacreous clouds Image copyright Shirley Anjum
Image caption In County Offaly, Shirley Anjum caught a glimpse of the clouds.

In some parts of the UK, people have been treated to a vision of nacreous - otherwise known as mother-of-pearl - clouds.

BBC News readers and people on social media have been sharing their photos. Here is a selection:

Image copyright Adam Charlesworth
Image caption Adam Charlesworth snapped this just after 8am in Leeds.
Image copyright Robert Leverton
Image caption Robert Leverton was in Bradford, West Yorkshire when he took this.
Image copyright Stephanie Dickenson
Image caption Stephanie Dickenson tweeted: "Whatever it's called, it was very pretty".
Image copyright Robert Bowman
Image caption Here's Robert Bowman's mother-of-pearl in the sky.
Image copyright Caroline Corfield
Image caption Caroline Corfield captured this image at Kingston Park, Newcastle.
Image copyright @InteriorDIYer
Image caption And @InteriorDIYer tweeted: "Woke up to an incredible little #nacreous cloud over Kilmainham this morning ☁"

Compiled by Sherie Ryder.