(CNN) -- A knife-wielding attacker killed at least two Japanese tourists and wounded 11 others on Tuesday in a tourist district on the U.S. Pacific territory of Guam, government officials said. The incident took place in Tumon on Guam's west coast, said Andy Gibson, an official in Gov. Eddie Calvo's office. Gibson said three people died and 11 suffered injuries in the ordeal. A spokesperson from Japan's foreign affairs ministry, meanwhile, said that two Japanese tourists were killed and 12 other Japanese were hospitalized. "(This) represents the worst tragedy that this island has seen in many decades," said Mark Baldyga, chairman of the Guam Visitors Bureau board.
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NEW: A tourism official calls the "isolated" incident Guam's "worst tragedy" in decades
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NEW: A Japanese official says two of its citizens died and 12 were injured
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A Guam official had said that three were killed and 11 were wounded
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News outlets say man plowed into a crowd, then started stabbing people
The victims will remain in the hearts and prayers of all @placeholder for many years to come."
@placeholder told the same newspaper that he had reached out to Japanese consular officials after the incident.