The director of an exhibition park showcasing Russia’s military might was arrested on fraud charges along with a top Defense Ministry official, part of a sweeping investigation into abuse of office in the top echelons of the military leadership.

Vyacheslav Akhmedov, head of the Patriot Park — sometimes called Russia’s “military Disneyland” — and Maj. Gen Vladimir Shesterov, deputy of the Defense Ministry’s innovations department, were detained, Russia’s Investigative Committee said Monday.

The committee, Russia’s top criminal investigation agency, said the two are suspected of embezzling government funds earmarked for the park, which opened in 2015.