Lloyds Bank's head of foreign exchange spot trading has left the bank, citing personal reasons unrelated to the probe into manipulation of the global currency market, sources have said.

Darren Coote had been with Lloyds in London since December 2011, having previously worked for more than a decade for Swiss bank UBS, one of the foreign exchange market's biggest players.

Lloyds said it would not comment on labour matters relating to individual employees.