By Anna Hodgekiss and Emma Innes PUBLISHED: 07:30 EST, 28 October 2013 | UPDATED: 20:22 EST, 28 October 2013 A British couple are to become parents of two sets of surrogate twin babies created from the same batch of embryos - a phenomenon known as 'twiblings'. The children, due in March next year, are being carried by two Indian women after a deal was arranged at a Mumbai clinic. The 'professional' couple, from Bedfordshire, do not want to be named. They decided to embark on fertility treatment in India after a series of failed treatments in the UK and two miscarriages, according to the BBC.
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The unnamed couple had IVF in India after struggling with fertility problems
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Six eggs were successfully fertilised and three embryos were implanted into each surrogate woman - both became pregnant with twins due in March
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This extremely rare phenomenon is known as 'twiblings'
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In the UK, embryos from same batch would not be implanted into two surrogates - guidelines recommend only one embryo is implanted at once
This means the mother's eggs were harvested from her ovaries and were then fertilised in a lab with her husband's sperm before being implanted into the @placeholder surrogates.