According to reports by the Daily Mail, the 23-year-old female and her partner were approached by the suspect Erik X. on April 2 while camping at the Siegaue Nature Reserve on the outskirts of Bonn, police said.

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The machete wielding man threatened the couple and then proceeded to rape the young woman outside their tent.

Her boyfriend called the police after the ordeal and the young woman was taken to the hospital.

The police, appealing for information, received around 250 tip-offs from members of the public. The suspected perpetrator was arrested in nearby Siegburg after a walker recognized him from an e-fit wanted poster.

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After spotting the law enforcement the man initially tried to run, flinging a rucksack at an officer. The rucksack, it turned out, was stolen from a barbeque party shortly before the sex attack occurred.

Subsequent DNA testing matched the suspect to the crime scene and a judge issued an arrest warrant for the rape.

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Police spokesman Robert Scholten is quoted by the German media as saying "Apart from the rape itself, we also found lots of DNA samples at the scene, which clearly belong to the detained person."