A second senior manager has left Auckland Transport while a major corruption inquiry continues.
Maintenance contracts manager Barry George resigned weeks after his hard drive was seized by corporate fraud investigators.
His former Rodney District Council colleague Murray Noone was fired last month for "serious conflict-of-interest and performance issues" as part of the same investigation.
George was at his Takapuna home last week but a woman at the address said he was not available to speak, and would not come to the door.
The Serious Fraud Office raided addresses on Thursday believed to include the offices of contractors involved in the investigation.