A white New Jersey couple were left stunned when a fertility mishap saw them give birth to a baby that developed "Asian features".
According to their lawsuit against the clinic, Kristina Koedderich and Drew Wasilewski claim a clinic fertilised the woman's egg with the wrong man's sperm.
The couple, who spent US$500,000 (NZ$776,000) for the treatment, is now seeking unspecified monetary damages, saying the clinic's mistake caused "great pain, suffering, permanent injuries and disabilities, as well as the loss of enjoyment of the quality of life"
The now-divorced couple went to the Institute for Reproductive Medicine and Science at Saint Barnabas in 2012, according to the court papers filed in Essex County Superior Court.
In 2013, their daughter was born, but "a couple of years later, they noticed the baby started having Asian features", the couple's lawyer David Mazie of Mazie, Slater, Katz & Freeman, told the New York Post.