A Bank of England internal probe revealed a “series of misjudgments” by a senior member of staff including the leaking of a confidential document and sending of inappropriate emails, MPs in the UK were told by governor Mark Carney yesterday.

Regulators in the US, Britain and Switzerland ordered five banks to pay about €2.6bn in fines in the first wave of penalties since authorities began a global probe into the rigging of key foreign-exchange benchmarks last year.