Amazon said on Saturday that two people were killed when part of the distribution depot collapsed in Baltimore in a serious time.
Serious storms with strong winds broke most of Maryland on Friday night.
Amazon's senior vice president, Dave Clark, told a tweet on Saturday that there were two deaths in the area on the southeastern side of the city.
Officials of the Baltimore Fire Brigade did not immediately respond to phone or email
Amazon spokesman Rachael Lighty said the men worked for an outside company. No one else injured, he said.
"The first correspondents remain on the spot estimating the damage," Lighty wrote in an e-mail. "The safety of workers and contractors is our first priority and at this time the building remains closed".
The news reported fire fire officials saying that a man was found under debris on Friday night and later pronounced dead while the second man's body was recovered early on Saturday. Employees said a wall of 50 pieces in the warehouse collapsed.
Fire chief Romney Clark spoke to the Baltimore Sun Pictures pulled out of the facility showed a bad truck and a light pole hit, the Sun said.
The National Meteorological Service has warned of the storms in the area, with some producing intense winds and intense rains.