YELLOWSTONE NATIONAL PARK, Wyo. (AP) — For the third time this summer, Yellowstone National Park rangers have cited a tourist for illegally flying a drone in the park.

Park officials said Friday that Donald Criswell of Molalla, Oregon, flew an unmanned aircraft over Midway Geyser Basin and near bison on Aug. 19.

In early August, rangers charged Theodorus Van Vliet of the Netherlands after his drone allegedly crashed into Grand Prismatic Spring. Andreas Meissner of Germany is accused of flying a drone that crashed into Yellowstone Lake on July 17. He was charged earlier this week.

The Jackson Hole News & Guide reports (http://tinyurl.com/n5rf3ej ) Grand Teton National Park has had at least one drone citation.

Rangers say a man crashed a drone into a tree in late June, possibly while trying to get aerial photos of wildlife.

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