CONCORD, N.H. (AP) — New Hampshire Audubon found several stickers on its trail signs in Concord last month with “images of hatred, racism and white supremacy,” the nonprofit’s president said.

Doug Bechtel, president, said in a video message last week that the organization removed the “bumper-sticker-sized” images and reported them to the Concord Police Department. New Hampshire Public Radio reported on Thursday that there have been no developments since, and that other land trusts New Hampshire Audubon spoke with in the state didn’t report anything similar.

In the video, Bechtel noted that New Hampshire Audubon had issued a statement earlier this year saying it has zero tolerance for racism and would try to improve racial diversity in their organization following the death of George Floyd in Minneapolis and the false attack claim made against birdwatcher Christian Cooper in New York’s Central Park.

Trails at the Silk Farm preserve have remained open during the coronavirus pandemic. Bechtel said the organization is working on several strategies to improve or be more welcoming to people of all backgrounds and abilities. ___

This story has been corrected to show the spelling of the name of the president of New Hampshire Audubon is Doug Bechtel, not Dough Bechtel.