Demi Lovato has said sorry after sharing a video of her mother joking about the Zika virus.

The singer came under fire from fans over the Snapchat clip which showed her mum Dianna Hart, who was drinking alcohol, saying: “Everybody down in Rio gonna get the Zika virus.”

Demi could be heard laughing in the background.

Demi LovatoDemi Lovato (Jordan Strauss/Invision/PA)

It sparked outrage online, where #DemiLovatoIsOverParty was trending on Twitter.

However, the star has now gone online to set the record straight.

She added:

The Zika virus causes birth defects in babies and has badly affected South America, including Olympic host country Brazil.