An American-Israeli educator was verbally accosted on Sunday on the grounds of the Auschwitz death camp in Poland over an Israeli flag she was carrying during a visit.

Los Angeles native Charlotte Korchak had joined a group of high school students from Florida on a tour of Auschwitz this past weekend while in Poland for a wedding. She was taking photos of the train tracks leading to the crematorium at the camp complex when a young woman, also a visitor, approached her.

“I saw her walking towards me with fight in her face, and I could tell something was about to happen, even though I hoped it wasn’t so,” Korchak, founder and senior educator of the U.S.-based Jerusalem Education Institute, recounted to JNS on Monday.