A German mother and her partner have been convicted over the repeated rape of the woman's young son and for selling him for sex on the internet.

They were sentenced to prison in a case that has horrified the country.

The Freiburg state court sentenced the woman to 12 and a half years in prison for rape, sexual abuse and forced prostitution.

Her partner was sentenced to 12 years. The court ruled that the man, who had a previous conviction for child abuse, must remain in preventive custody after serving his sentence.

The 48-year-old woman and 39-year-old man were accused of repeatedly abusing and raping the boy, now ten, and selling him to other men on the dark web for more than two years.

The abuse was filmed.

The pair and six others were arrested last autumn, with several men already convicted in separate trials.

In Tuesday's verdict, the couple was ordered to pay a total of £38,000 in compensation to the boy and another victim.

Local authorities have been accused of failing to protect the boy, who now lives with a foster family.

The mother's partner was supposed to be banned from having contact with children.

Officials took the boy out of the family in March last year, but a local court sent him back weeks later.