Two Nigerian brothers have appeared at Londonderry Magistrates Court charged in connection with people-trafficking.
Alexander Success, 28, of Waterfoot Park in Derry and Akeen Sittu, 29, with an address at Blanchardstown, Dublin, were remanded in custody.
The court was told the charges follow an international police operation.
A police officer said he believed the pair were involved in an operation to involve vulnerable young women in arranged marriages.
The court was told that the brothers had been arrested as part of a worldwide inquiry involving Interpol and police forces in China, Germany, Nigeria, South Africa and the Republic of Ireland.
The brothers are charged with facilitating the illegal entry into the UK of a Chinese immigrant in Coleraine between January and December 2002.
The officer said Mr Success had been identified trying to recruit young women in a local housing estate.
He said he believed some young women in Northern Ireland were living in fear of their lives.
The brothers were remanded in custody to appear at Ballymena Magistrates Court on 15 June.
Police said a third man who was arrested with the brothers on Thursday has been found out to be an illegal immigrant.
He is now in the process of being deported.