Perhaps it may seem unbelievable, as it sounds, but there is a language spoken by only three people.

Badeshi was once widely spoken in a remote, snow-covered village deep in the mountains of northern Pakistan.
But now it is considered extinct.
In the village of Bishigram, the BBC has found three elderly men who may still speak Badeshi.
There are not many opportunities for jobs in the area, so these men have spent more time in the Swat tourist area, where they mainly communicate through the Pashto language.