Several investigations have been launched after a Spanish man in Kenya posted videos of himself pouring beer down an elephant's trunk - sparking anger on social media.

He was filmed in a wildlife reservation drinking from a can of Tusker, a popular local beer, before giving the rest of it to the elephant.

"Just a tusker with a tusked friend," he captioned one clip posted on Instagram, which was later deleted from his account after a backlash from Kenyans in the comments.

The BBC analysed the footage and was able to authenticate it as genuine. The landscape and a well-known bull elephant point to it being filmed at the Ol Jogi Conservancy in the central county of Laikipia.

A member of the staff contacted by the BBC at the privately owned wildlife sanctuary was shocked by the behaviour - and said the videos would be passed on to "the relevant authorities".