Severe weather came through the area Friday night at the time of the partial collapse, Clark said.
The National Weather Service confirmed an EF1 tornado toppled a tractor-trailer on Interstate 95 in Baltimore then struck the Amazon distribution facility with winds as high as 105 mph and then traveled 2.5 miles through Baltimore County.
A 50-by-50-foot wall collapsed at the facility, which is located in southeast Baltimore, at around 10:30 p.m. on Friday.
Fire department chief Roman Clark told the Baltimore Sun that a 15-metre wall collapsed as a storm hit the area.
People look over a damaged truck, November 3, 2018, after a weather-related building collapse at an Amazon distribution warehouse in Baltimore.
In a statement, an Amazon spokesperson told the Sun that, 'First responders remain onsite assessing the damage. He reported that one person was found under the debris of the collapsed building and later was taken to the hospital, where he was declared dead by the doctors.
Officials said there weren't any other reports of people missing. "The safety of our employees and contractors is our top priority, and at this time the building remains closed". "Our thoughts go out to all families impacted by this evening's severe weather".
Media reports said rain began pouring into the hole left in one side of the building.