The FBI has frozen access to Neteller accounts as part of its ongoing investigation into the company.

Neteller, which is registered in the Island, provides electronic wallet services which were popular with gambling sites because they allowed US residents to gamble without using credit cards which would give away their home addresses.

US authorities last month arrested two former executives of the company.

They were charged not under new US legislation, but for "conspiring to transfer funds with the intent to promote illegal gambling".

The two are due to appear in court 14 February in New York.

According to USA Today, FBI agent Neil Donovan said the funds were being kept as evidence.

He told the paper some customers may get their money back.