An American woman lured to Nigeria by a promise of marriage from a man she met on Facebook has been rescued after being held captive for more than a year, police say.

The 46-year-old was held against her will in a hotel room in Lagos.

The suspect Chukwuebuka Obiaku, 34, "took control" of the unnamed victim's credit and debit cards, and retirement benefits, according to the police.

Over a period of 15 months she was forced to part with $48,000 (£38,000).

The victim is a retired civil servant from Washington DC.

Police say Mr Obiaku "also used the victim as a front to defraud her associates and other foreign personalities and companies".

What more do we know?

The victim arrived from the US in February 2019, according to Nigerian police. In May 2019 she married Mr Obiaku.

In total, the woman is said to have been held against her will for 16 months in a hotel room.

The police say they received a tip off from a "civic minded" individual and they used the information to rescue her.

Mr Obiaku has been arrested and police say he faces a charge of cybercrime.

How common is online fraud?

Known as "Yahoo boys", Nigerian online fraudsters have become notorious for defrauding people of millions of dollars.

Last month, police say they rescued a Filipina woman who came to Nigeria in search of romance after meeting a man on Facebook. She was held for six months against her will.

The recent high-profile arrests of two Nigerian social media stars accused of large-scale fraud ended with them being taken to the US where they now await trial.

Nigerian police have also announced three further arrests of alleged cyber fraud criminals with links to Italy and Turkey, suspected of the fraudulent supply of Covid-19 face masks.

Police allege they made more than $400,000 from online fraud.

CYBERCRIME: INTERPOL ABUJA ARREST 3

· As IRT Operatives Rescue American Lady Confined In Lagos Hotel For 16 Months

Operatives of the Nigeria Police Cybercrime Unit, INTERPOL National Central Bureau (NCB), Abuja have arrested three (3) suspects;
­ pic.twitter.com/UiueHAX6rE

— Nigeria Police Force (@PoliceNG) July 12, 2020

How a 419 and romance scam works

• An individual may contact you via e-mail, explaining he needs help to transfer money
• Will tell you that political turmoil or a natural disaster makes it difficult for him to make the transfer
• Will ask you to give him your financial details so that he can transfer the money into your account
• This allows him to access and steal from your account
• Be careful what you post on social media and dating sites as scammers use the details to better understand you and target you