TRENTON - New Jersey's Motor Vehicle Commission will be open extra hours this weekend because it was one of several New Jersey state government websites and computer systems that were shut down Friday after an overnight outage.

Treasury Department spokesman Bill Quinn says the sites, along with many agency computer systems, were automatically shut down around 2 a.m. when there was a fire alarm at a data processing center in West Trenton.

Quinn says the alarm was a false one, possibly caused by high temperatures.

Officials say many of the websites began coming back online at around 11 a.m. The MVC is also planning to schedule extra personnel in its agencies on Monday to continue to help those customers who could not conduct their business on Friday.

AP wire services contributed to this report.