A BBC undercover investigation into abuse of a fast-track UK immigration scheme has found companies offering to help migrants pose as talented artists and tech experts to make fraudulent visa applications.

The UK government's Global Talent visa was launched in 2020 to attract the "brightest and best" scientists and researchers from around the world. It is also open to creative artists.

We found one company offering fake art portfolios to wealthy migrants looking to cheat the system - for a large fee - which could be passed off as their own work.