THE family of a missing teenage girl have made an emotional appeal for help in tracing her whereabouts. 

19-year-old Alanis Kyle was last seen at 7am on Thursday, November 3, according to her sister Rachael. 

Rachael took to Twitter in a bid to find her sibling, in a message that has been shared more than 3000 times on the social media site. 

She wrote: "My sister Alanis is missing, she was last seen 7am Thursday 3rd of November, if you have seen her since then, contact me immediately."

In a subsequent Tweet she revealed CCTV has confirmed Alanis had got off a train at Edinburgh's Waverley Station at 8.15am on Thursday. 

The missing teen is described as five foot six inches, and is likely wearing a grey hat and hoodie.