Credit unions with offices in the northwest Boston suburbs where one Boston bombing suspect was killed late last night are closed as ordered by area police, said Rob Kimmett, senior vice president of marketing with the Massachusetts Credit Union League.

Kimmett said both Governor Deval Patrick and Boston police have asked businesses in the affected suburbs, as well as within Boston city limits, to remain closed today. Residents have also been put on lockdown and asked to stay in their homes.

The Massachusetts league office, located some 30 miles west of Boston, is open today, Kimmett said.

According to a notice posted on its website, the MIT Federal Credit Union is closed today. The $363 million campus-based credit union is located in Technology Square, within a couple blocks of last night's on-campus shooting of a campus police officer.

At the $290 million City of Boston Credit Union, Vice President of Operations Cathy McCormack-Mullen's voice mail message informs callers that all three of its branches are closed. That message conflicts with information posted on the credit union's website, which states that only the City Hall branch was closed and would soon reopen. An employee who answered the phone at the credit union's Dorchester Branch said the institution made the decision to close its locations just before 10 a.m.

NCUA Public Affairs Specialist John Fairbanks said the agency is in the process of contacting Boston-area credit unions to assess how many have been affected by the police activity.