Feb 19, 2013 1 min read

PITTSBURGH (AP) — City officials in Pittsburgh say they are investigating several police-related bank accounts, including who controlled them and how the money was spent.

Mayor Luke Ravenstahl says the probe involves several accounts at the Greater Pittsburgh Police Federal Credit Union. The FBI seized documents from the institution last week.

Ravensthal said Tuesday that he doesn’t know why money from one account paid to rent condos downtown for officials whose homes were threatened by Group of 20 summit protesters in 2009.

City Controller Michael Lamb has already announced an audit of the police department’s Special Events office. He wants to see how it handles payments received for off-duty officers hired to work private security details.

Lamb says the credit union is not an authorized depository for city money.