Police have warned those who post "hurtful" or "unnecessary" messages on social media that they could face a visit from officers.

Greater Glasgow Police tweeted the warning early on Friday morning.

Their message read: "Think before you post or you may receive a visit from us this weekend. Use the internet safely. #thinkbeforeyoupost"

It was accompanied by a picture advising social media users to consider five points before publishing anything on sites including Twitter and Facebook.

Police have asked people to ensure posts are true, not hurtful, not illegal, necessary and kind.

The advice goes further than the official Police Scotland's website, which states that if it is illegal offline is it illegal online.

"This includes posting anything that promotes crime, violence or drug misuse," it says.

"This also includes threats made against you or attempts to force you to pay money or do something to prevent your personal information or images being posted elsewhere on the internet or forwarded to others.

"This activity is often linked to footage taken using webcams, known as Online Webcam Extortion

"Anything put online can be traced - even if false details are used."