A new mass shooting in the US leaves four dead, this time in a Tulsa hospital

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A man armed with a rifle opened fire Wednesday inside a

killing three people, police said, in the latest in a series of mass shootings in the United States.

The

according to the Police, but it was not clear how.

Officers were still working to clear the

and a news conference was scheduled for 7:15 p.m. local time.

Capt

told

that Tulsa Police received a call about a man with a rifle on the second floor of a medical campus building and it "turned into an active shooter situation."

When the agents arrived at the scene,

had been shot."

A couple of them were dead at the time," Meulenberg said.

"We also found who we thought was the shooter and we continue to believe he is the shooter, because he was carrying a long rifle and a pistol," Meulenberg added.

The

said President

had been briefed on the shooting and is "closely monitoring the situation and has reached out to state and local officials to offer support."

The Tulsa shooting comes after two mass shootings in May that shocked Americans and reignited debates over gun control.

Last week, a gunman killed 19 children and two teachers at an elementary school in Uvalde, Texas.

In early May, a shooter killed 10 people at a supermarket in Buffalo, New York.

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