KIEV, March 5 (Reuters) – Armed men seized Robert Serry, a special representative of U.N. Secretary General Ban Ki-moon in Ukraine’s Crimea region on Wednesday, Ukraine’s Foreign Ministry said.

Serry has previously served as a special representative to the Middle East, dealing with the peace process. He arrived in Crimea at the beginning of March.

Serry has also previously served as Dutch Ambassador to Ukraine.

Reuters contributed to this report