Social media star Nicole Thea has died with her unborn son, his Instagram page announced.
A statement from her mother said that the 24-year-old woman, eight months pregnant, had named her child Reign with her partner Boga.
No cause of death was revealed in the message.
The dancer and influencer, who lived in London, had kept fans informed of her pregnancy, regularly posting videos on her YouTube channel and Instagram page.
Several videos that Nicole had filmed before her death will be published on her YouTube channel, the statement confirmed.
Shortly before the announcement, a behind-the-scenes vlog was posted on YouTube to show her that she was taking a milk bath during a maternity photo shoot.
His partner Boga, part of the Ghana Boyz group, recently posted a video of him dancing next to a pram – writing that he was looking forward to taking his son to the park and to a playground.
The couple announced the pregnancy in April, writing, “God has given us the greatest blessing to date.”
Tributes from fans and other influencers have been published online.
Banks released a tribute, Love Island star Alexandra Cane wrote, “It is heartbreaking,” while choreographer Sherrie Silver said she was “completely and utterly sorry.”
Follow Newsbeat on Instagram, Facebook, Twitter and Youtube.
Listen to Newsbeat live at 12:45 p.m. and 5:45 p.m. weekdays – or listen again here.