CHARLESTON, W.Va. (AP) — Torrential rains caused flash floods in West Virginia that inundated homes and businesses, washed out bridges and led to numerous water rescues. The state’s governor said that some residents were unaccounted for as search operations continued Wednesday.

Gov. Patrick Morrisey sent hundreds of National Guard members to the hardest-hit areas in the northern part of the state and declared a state of emergency for all 55 counties Tuesday night. The state Division of Natural Resources has been involved in 85 rescues, he said, and 19 National Guard and state police helicopters were either out on rescue missions or standing by if needed.

Three shelters were opened Wednesday that housed a total of more than 100 residents, the governor said at a news conference.

Governor says he is concerned about any fatalities

Asked if anyone was unaccounted for, Morrisey replied: “We don’t have an exact number but we are concerned about fatalities,” adding that “as soon as we have more information” officials will provide details.

Forecasters said up to 7 inches of rain fell. Morrisey said some places received 4.5 inches in 37 minutes.

“There’s no place for the water to go,” he said.

Video and photos on social media showed submerged vehicles in parking lots, including at a Walmart in Weston where muddy water surged far into the store. Across a nearby highway, a hotel’s main floor was inundated.

Emergency crews reported dozens of rescues of people stuck in submerged vehicles. However, some rescuers were unable to get to locations where floodwaters had cut off access. Officials in some communities were still waiting for floodwaters to recede Wednesday before figuring out where the public can drop off donated supplies. Buckhannon Mayor Robbie Skinner said one such place will be West Virginia Wesleyan College.