Ex-wife: Orlando killer 'disturbed'

The man responsible for killing 49 people and wounding 53 at at a gay nightclub in Florida has been described by his ex-wife as abusive, "mentally unstable" and "disturbed".

Sitora Yusufiy appeared in front of the media with her fiance, Maurcio Diaz.

Omar Mateen, 29, opened fire at the Pulse club before being shot dead by police.