NEW YORK: Online foreign exchange market broker  FXCM said on Thursday it had been hacked in an intrusion that saw money  withdrawn from some customer accounts.

“At this time FXCM has identified  a small number of unauthorised wire transfers from customer accounts,”  the company said in a statement.

But it added that all the money has  been returned to the raided accounts and the affected customers have  been notified.

FXCM said it had received an e-mail from a hacker claiming  to have access to customer information. The firm said it notified FBI and also launched its own investigation.