Three people were killed and others wounded during a shooting at a Rite Aid distribution center in Maryland on Thursday morning, according to reports.

A law enforcement official told the Associated Press that the number of dead was based on preliminary information.

The 9:06 a.m. shooting happened in Aberdeen near Perryman at a support facility for the chain drugstore inside of an industrial park area, police said.

A slew of deputies, officers, troopers and other first responders arrived on the scene within five minutes, according to authorities.

The lone suspect — which the Baltimore Sun reported is a woman — citing sources, is in police custody in critical condition at a local hospital, cops said.

“Many people have been affected by the events this morning,” Sheriff Jeffrey Gahler of the Harford County Sheriff’s Office said at a brief press conference. “There are families irreparably harmed by the events this morning.”

Gahler would not confirm the number of dead and injured and would only say there are “multiple wounded and multiple fatalities.”

The suspect, whose identity was not released, used a single handgun, according to Gahler, who noted that no shots were fired by officers.

“I ask you to keep the victims of today’s tragic events in your thoughts and prayers,” Gahler said.

Roughly 1,000 employees work at the Rite Aid distribution center where the shooting occurred, a company spokesman said.

“We were informed this morning at our corporate headquarters of a shooting at the Liberty Support facility, which is part of our Perryman distribution center in Aberdeen, Maryland. Police have arrived at the facility and we’re cooperating fully with their investigation,” the Rite Aid spokesman said in a statement.

At Rite Aid distribution centers, products are received from vendors and manufacturers and processed for delivery to more than 2,500 stores across the country.

Maryland Gov. Larry Hogan said in a tweet: “We are closely monitoring the horrific shooting in Aberdeen. Our prayers are with all those impacted, including our first responders. The State stands ready to offer any support.”

The FBI responded to the shooting scene as well as the Baltimore Field Division of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives.

Aberdeen is roughly 30 miles from Baltimore.

The shooting comes a day after two Maryland police officers were shot and injured in District Heights while serving a drug-related search warrant at an apartment building.

In Wisconsin on Wednesday, three people were wounded in an office shooting. The gunman in that incident was killed by police.

On Wednesday in Pennsylvania, three civilians were injured when a shooter opened fire outside a crowded courtroom. The suspect, Patrick Dowdell, 61, was fatally shot by cops.

An officer was also injured during the incident.

With Post wires