WASHINGTON (AP) — Multiple news reports indicate that Democratic vice presidential nominee Minnesota Gov. Tim Walz misleadingly claimed he was in Hong Kong during the turbulence surrounding the 1989 Tiananmen Square massacre, part of a broader pattern of inaccuracies that Republicans hope to exploit.

On Tuesday, CNN posted a 2019 radio interview in which Walz stated he was in Hong Kong on the day of the massacre, when publicly available evidence suggests he was not. The Associated Press contacted the Harris-Walz presidential campaign regarding the misrepresentations and did not receive a response.

After a seven-week demonstration in Beijing led by pro-democracy students, China’s military fired heavily on the group on June 4, 1989, and left at least 500 people dead.

Minnesota Public Radio reported Monday that publicly available accounts contradict a 2014 statement made by Walz, then a member of the U.S. House, during a hearing that commemorated the 25th anniversary of the massacre. Walz suggested that he was in the then-British colony of Hong Kong in May 1989, but he appears to have been in Nebraska. Public records suggest he left for Hong Kong and China in August of that year.

The vice presidential candidate also has made statements in which he misrepresented the type of infertility treatment received by his family, and there have been conflicting accounts of his 1995 arrest for drunk driving and misleading information about his rank in the National Guard. Mr. Walz and his campaign have also given different versions of the story of his 1995 arrest for drunken driving.

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During the 2014 hearing on Tiananmen Square, Walz testified: “As a young man I was just going to teach high school in Foshan in Guangdong province and was in Hong Kong in May 1989. As the events were unfolding, several of us went in. I still remember the train station in Hong Kong. There was a large number of people — especially Europeans, I think — very angry that we would still go after what had happened.”

“But it was my belief at that time,” Walz continued, “that the diplomacy was going to happen on many levels, certainly people to people, and the opportunity to be in a Chinese high school at that critical time seemed to me to be really important.”

Minnesota Public Radio said the evidence shows that Walz, then a 25-year-old teacher, was still in Nebraska in May 1989. He went to China that year through WorldTeach, a small nonprofit based at Harvard University.

The news organization found a newspaper photograph published on May 16, 1989, of Walz working at a National Guard Armory. A separate story from a Nebraska newspaper on August 11 of that year said Walz would “leave Sunday en route to China” and that he had nearly “given up” participating in the program after student revolts that summer in China.

Some Republicans have criticized Walz for his longstanding interest in China. Besides teaching there, he went back for his honeymoon and several times after with American exchange students.

Kyle Jaros, an associate professor of global affairs at the University of Notre Dame, told The Associated Press that it’s become “a well-worn tactic to attack opponents simply for having a China line in their resumes.”