Monash IVF Group has been forced to disclose another incident in which they transferred the wrong embryo into a woman, just months after a similar incident was exposed. In a statement released to the ASX on Tuesday, Monash Group advised the incident involved transferring a patient's own embryo to her, instead of inserting the embryo of her same-sex partner. The Melbourne-based woman is now being supported by the reproductive giant. "Monash IVF has extended its sincere apologies to the affected couple, and we continue to support them," it said in a statement. In a statement to the ASX, Monash IVF said the incident is being investigated and the company and safeguards are being introduced. Its shares were hammered 25 per cent lower to a near five-year low of 55.5¢ after news of the bungle broke. "Commencing immediately, Monash IVF will implement interim additional verification processes and patient confirmation safeguards over and above normal practice," Monash IVF Group said in their statement.