Christians Under Attack

The 26-year-old, who has not been named, was found guilty of sneaking into the 20-year-old woman's bed after they visited the Long Night of Museums event in Cologne, where museums stay open late.

He attempted to make advances towards her hours before the rape but she had told him to stay away.

Judges in Cologne had previously handed the refugee a two and a half year sentence in June last year but his lawyers had demanded an acquittal, which ended up with a year being added on to his jail-term.

udges said the act was a "massive breach of trust" as the woman had been very supportive of the accused as she took him into her home after being put in contact with him through an internet group called Flüchtinge Wilkomment (Refugees Welcome).

The Afghan's lawyers argued the woman had hypnopompic hallucinations, where people see visions in between sleeping and waking.

They accused her of imagining the rape and also said another guest in the flat could have carried out the rape

There have been several high-profile rape cases carried out by refugees in Germany over the past two years since Angela Merkel adopted an open-door migrant policy in 2015, allowing more than 1.1million refugees to enter the country.

At the beginning of December, German officials revealed the daughter of a high-ranking European Union (EU) official was raped and drowned by an Afghan refugee in the university city of Freiburg, southwest Germany, in October

Maria Ladenburger's body was found in the River Dreisam and the 17-year-old migrant was arrested after police found Maria's DNA on a scarf as well as a strand of the man's hair near the path.

He admitted carrying out the attack and will be sentenced this year.

Ms Ladenburger reportedly worked in her spare time helping out in refugee homes in Freiburg.

But it is unclear whether she ever met her murderer before he took her life.

The dead girl's father is Dr Clemens Ladenburger, a lawyer who works as the right hand man to the legal director of the European Commission.