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A close up on the viewing end of a lab microscope.

(KPIX 5) – A Chinese scientist with Bay Area ties is reportedly missing, just days after unveiling a controversial genetic experiment.

Last week, scientist He Jiankui sparked a flurry of debate over DNA editing after claiming to use CRISPR gene editing to alter the genetic codes of twin baby girls.

He claimed to change the twins’ DNA to make them resistant to HIV. The scientist also claimed another pregnancy could be in the works.

The disclosures prompted an international outcry. Chinese health officials promptly condemned the physicist and the Chinese government ordered He to halt his work last Thursday.

He was last seen at the Human Genome Editing Conference in Hong Kong last Wednesday.

The South China Morning Post reports that the researcher’s employer is dismissing claims he was detained, saying reports are “not accurate right now.”

At last week’s summit, He outlined his future plans for the experiment.

“The plan to monitor the twins’ health over the next 18 years. With the hope that they will consent, as adults, for continued monitoring and support,” He said.

He was trained...