The casino-lined and tourist-filled Las Vegas Strip was shut down Saturday, and guests at one hotel told to shelter in place, after a shooting inside a bus left one person dead, police said.

The suspect in the deadly shooting has since barricaded themselves inside the bus, which was driving down the popular strip during the shooting.

"This is an ongoing situation," Las Vegas Metropolitan Police officer Larry Hadfield told reporters. "We are treating this as a barricaded situation."

Two people were injured in the shooting, which occurred at 10:48 a.m. local time, Hadfield said. They were both taken to a nearby hospital to be treated, where one of them died.

The condition of the second victim was not immediately known, Hadfield said.

SWAT officers and crisis negotiators have since arrived in the area where the suspect had barricaded himself in the bus near the Cosmopolitan Casino.

Guests inside the Cosmopolitan were told by the hotel to "remain in a safe shelter until further notice."

Police also shut about a half-mile portion of the Las Vegas strip, where casinos such as the Bellagio, Paris, and Planet Hollywood sit.

MGM Resorts also sent out a tweet, asking visitors to cooperate with police on the street closures until the situation is cleared.

The shooting came just hours after an armed robbery occurred inside a high-end jewelry store in the Bellagio.

Hadfield told reporters there was no information indicating that the robbery inside the casino and the shooting in the bus were connected.

The motive for the bus shooting was still unknown, he said.

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