A message, written as if in the voice of the comedian, was shared onto her Facebook page via her Instagram account this morning (19 September), according to US gossip website TMZ. The posts have since been removed.
The post - which could have been scheduled before the comedian’s death - supposedly offered a glowing report of Apple’s latest iPhone, which went on sale globally today.
"This badass is being replaced by an iPhone 6 (not the fat one)," says the post pictured on the gossip site.
The post continues: "I got this one in 2010 and, after 4 years, my only complaint is that apps are now designed for bigger screens, and the battery is getting tired. Never had a case for it, since it was most beautiful on its own. Great achievement in design. Great product. #apple #iphone #tech."
Apple has been asked to comment, but had not provided one at the time of going to press.
Rivers died on 4 September after she stopped breathing during a routine throat surgery. She was placed in a medically-induced coma, before her death a week later.
The entertainer’s daughter, Melissa Rivers, this week thanked the public for their support.
"As my son Cooper and I mourn the loss of my mother, we want to thank everyone for the beautiful cards and flowers conveying heartfelt messages and condolences, which continue to arrive from around the world and through social media," she said.
"My mother would have been overwhelmed by the scope and depth of the love that people have expressed for her. It is certainly helping to lift our spirits during this time.
"We are forever grateful for your kindness and support in continuing to honour my mother’s legacy, and for remembering the joy and laughter that she brought to so many."
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