WASHINGTON — President Joe Biden and Vice President Kamala Harris will mark the 23rd anniversary of the Sept. 11 terrorist attacks with a visit to Shanksville, site of the Flight 93 National Memorial.

The site in Stonycreek Township 80 miles southeast of Pittsburgh was where one of the four planes hijacked by Arab terrorists on Sept. 11, 2021, crashed after passengers rushed the terrorists who had commandeered the aircraft and were believed heading to the U.S. Capitol.

The president and vice president also will visit Ground Zero in New York City and the Pentagon in Arlington, Virginia, where the other three hijacked planes hit.

Second gentleman Douglas Emhoff and Gov. Josh Shapiro marked the occasion last year at the Flight 93 memorial.

For Biden and Harris, it will be their second visit in less than two weeks to Pennsylvania, the most populous battleground state in this fall's presidential election. Both the president and vice president joined a Labor Day rally in Pittsburgh, and then Harris returned to the city Thursday to prepare for Tuesday's presidential debate in Philadelphia. The Democratic vice-presidential nominee, Minnesota Gov. Tim Walz, barnstormed through Pennsylvania for two days earlier this week, including a stop in Allegheny County.

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