A woman has been arrested on suspicion of money laundering offences as part of a investigation into the supply of small boats to people smugglers.
National Crime Agency officer held 49-year-old at an address in Surrey Quays, south-east London, on Thursday morning.
A network is suspected of providing boats and maritime equipment from Turkey to gangs operating throughout Europe.
The female is believed to have received funds derived from small boat supply.
She remains in custody and is now being interviewed by investigators.

NCA regional head of investigation Lydia Bloomfield said: “Tackling organised immigration crime remains a key priority for the NCA, and we are determined to target, disrupt and dismantle the gangs involved in planning Channel crossings in any way we can.
“That includes focusing on those involved in supplying boats and equipment to them.
“Our investigation continues.”
The NCA said it continues to work with European partners to target small-boat people smuggling syndicates by disrupting their equipment supply lines.
Since early 2023, the agency has seized more than 700 boats and engines.