A British aristocrat and her boyfriend have been convicted of killing their newborn daughter.

British police said they found the remains of a 2-month old baby Wednesday after officers arrested the infant’s mother and her boyfriend, a registered sex offender in Broward County. Both vanished after the child was born in early January.

British police have launched a major search for a two-month-old baby after officers arrested the infant's mother and her boyfriend who had been missing since January.

The father of a British woman who has been missing for two weeks with her partner and newborn baby has appealed for her to contact police.