Khloe Kardashian and her daughter, True, have both tested positive for COVID-19.
The 37-year-old reality TV star shared the news on Twitter and apologised for having to "cancel several commitments" due to being in quarantine.
This is the second time the Keeping Up With The Kardashians' star has tested positive for coronavirus, having previously contracted the virus in March 2020.
She wrote on Twitter: "Hi guys I wanted to let you know True and I tested positive for Covid.
"I've had to cancel several commitments and I'm sorry I won't be able to make those happen.
"Luckily I have been vaccinated so all will be ok.
"We will be over here in quarantine and following current guidelines."
She added in a further tweet: "Be safe everyone!"
Kardashian co-parents three-year-old True with basketball star Tristan Thompson.