Pictures have emerged of a dungeon-like bunker where a Swedish doctor reportedly held a woman captive for almost a week.

The 38-year-old man has been charged with kidnapping, drugging and raping the victim, aged in her 30s, Swedish newspaper Aftonbladet reports.

The doctor, who has not been named, reportedly intended to keep her captive in the sound-proofed bunker on his farm in Skane for a number of years.

Images released by police show the purpose-built bunker included a double bed, a fridge stocked with food, a sink and a toilet.

Detectives also reportedly discovered drug-laced strawberries, used condoms, syringes and a gun in the building.

Two rubber masks understood to have been used by the doctor to disguise himself were also found.

The man is thought to have started building the bunker five years ago, the prosecutor said.

Its concrete walls were 32cm (12 in) thick and it included double doors for security and several locks.

The woman's six-day ordeal came to an end when the doctor took her to a Stockholm police station in September because he realised authorities were looking for her.

He told her to tell police she was fine, but they became suspicious about her behaviour and questioned her further.

She revealed what had allegedly happened and the suspect was arrested that day.

The prosecutor reportedly said the woman was abducted from her house in central Stockholm and taken south to the farm, which is surrounded by dense forest.

The man has admitted kidnapping and imprisoning the victim, but denies raping her, Aftonbladet reports.

The attack is reminiscent of the crimes of Josef Fritzl, who locked his daughter in a cellar in Austria for decades.

He was sentenced to life in a psychiatric hospital in 2009.