NORFOLK, Va. — The Latest on the impact of and response to Hurricane Matthew in Virginia on Sunday (all times local):

2:15 p.m.

Police in Hampton are investigating the death of a man who was found unresponsive after reportedly leaving his home to check on storm damage from Hurricane Matthew.

Authorities say dispatchers received a call shortly after midnight Sunday about a possible drowning in the first block of Sherry Dell Drive.

Fire and rescue officers from the Hampton Police Division responded to the scene, where they learned that the man had gone outside of his home to check for damage from the storm. He was found a short time later by bystanders, unresponsive and in standing water.

The man was pronounced dead at the scene.

Official say the death appears to storm related, but that the incident is under investigation and the cause of death still remains unknown.

12:40 p.m.

A Navy amphibious assault ship is sailing from Norfolk to Haiti to assist in Hurricane Matthew relief efforts.

Officials say the USS Iowa Jima, with more than 500 Marines from the 24th Marine Expeditionary Unit, departed Norfolk on Saturday.

The Iwo Jima is carrying nearly 225 pallets of supplies, including 800 cases of bottled water. The ship also took on four additional aircraft and two utility boats able to access fouled beaches.

The Iwo Jima, based out of Mayport, Florida, will ultimately relieve the USS Mesa Verde, which was due to arrive in Haiti early Sunday.

12:15 p.m.

City managers in Norfolk and Virginia Beach have declared states of emergency as residents deal with flooding from Hurricane Matthew.

Virginia Beach officials have asked for help from the National Guard, including high water vehicles and debris reduction crews.

Officials said Sunday that many streets are flooded, and some have downed trees and power lines.

Emergency shelters were opening at Cox High School in Virginia Beach and Norview High School in Norfolk.

Norfolk officials say a majority of the 911 calls they are receiving are from citizens stranded in flooded vehicles, and that the city will continue to experience flooding through several high tide cycles.

Norfolk officials say the York Street Parking Garage, the Freemason Street Garage and Bank Street Garage are open for free, dry parking through noon Monday.

11:15 a.m.

Norfolk International Airport recorded 10 inches of rain, as the Hampton Roads area also experienced street flooding, downed trees and power outages from the effects of Hurricane Matthew as it moved off the coast and out to sea.

The Virginian-Pilot said the Virginia National Guard was sending 160 troops to the area Sunday to assist with response to the flooding. The Guard will use Humvees and tactical trucks to help with transportation through high water.

Dominion Virginia Power reported more than 225,000 customers without power in Southeastern Virginia as of 10:30 a.m.

Wind gust of up to 80 mph were recorded off the Virginia Beach oceanfront on Saturday night, said Mike Montefusco, a National Weather Service meteorologist in Wakefield, Virginia.

Hurricane Matthew was downgraded overnight to a post-tropical cyclone.