D.C. Mayor Vincent Gray announced the city government would be closed at least one more day as Hurricane Sandy is expected to peak in the region early Tuesday.

"Because this storm is expected to continue affecting the region with strong winds for the rest of the night and into tomorrow morning, we think it's in the best interest of public safety to close our government offices and public schools again tomorrow," Gray said.

(See a photo gallery of storm images and follow the latest updates from the Examiner)

The city's early voting sites also will be closed Tuesday.

As of mid-afternoon, only minor street flooding had been reported, according to Gray. But with continued heavy rain expected and the potential for power outages, D.C. officials urged residents to stay inside.

(Watch storm videos from the D.C. region and the latest videos from around the country)

Sandy's peak winds are expected to reach up to 60 mph and gusts up to hurricane strength (75 miles per hour or more) are possible. The duration of the storm's peak will likely be several hours - with conditions expected to deteriorate rapidly Monday evening and high winds are expected well into the day Tuesday.

More District updates:

• A state of emergency has been declared in the District and residents can visit hsema.dc.gov/page/hurricane-sandy for updates about the city's response to Sandy.

• A list of shelters is available on the D.C. Government's Hurricane Sandy website. Rides to shelters are available until conditions are too dangerous. Call 311 for a ride. The shelters provide needs for those exposed to dangerous conditions (such the homeless) or a place for those whose homes are not habitable.

• Department of Public Works tow trucks will be deployed as necessary to remove vehicles blocking roadways.

• The District Department of Transportation has generators in place at major intersections. If power is disrupted, traffic signals will continue to work, and DDOT traffic control officers will be deployed to direct traffic where necessary.

• DPW has suspended street cleaning through Wednesday, and garbage collections for Monday and Tuesday will be rescheduled.