A Devon worker has repaid £2m mistakenly paid to him by his employer.
The engineer, who makes turbine blades at Alcoa Howmet in Exeter, normally earns £2,000 and was stunned at the massive windfall in his monthly salary.
But before the company even noticed the money was missing, the employee contacted his manager.
An Alcoa spokesman said: "It is a good example of the quality of people we have at our company. The sum of money involved was a significant amount."
The company said the matter was being taken seriously and the employee's honest and prompt action would be recognised.
'So much integrity'
"We are very happy that this employee acted so quickly but we are also looking into the incident," the spokesman said.
"We are obviously very pleased that the person acted in such an honest and immediate way and showed so much integrity."
The overpayment would probably have been traced "within days" and the employee would have been asked to repay it if he had not done so voluntarily, the firm said.
The massive overpayment is the second embarrassment for Howmet Alcoa in four months.
Last year it had to apologise when the details of scores of employees were posted online, showing salaries and personal information.