An American pastor is occurring trial in Turkey accused of ties to terror teams and spying, in a case that has strained ties between Turkey and the US.

Andrew Craig Brunson, a 50-year-old evangelical pastor from North Carolina, faces as much as 35 years in jail on expenses of “committing crimes on behalf of terror teams with out being a member” and “espionage.”

The trial begins Monday in Aliaga, a city in western Turkey.

Brunson was arrested in December 2016 for alleged hyperlinks to each outlawed Kurdish rebels and a community led by U.S.-based Muslim cleric Fethullah Gulen, blamed by Turkey for a failed army coup that 12 months.

Brunson, who has lived in Turkey for 23 years, rejects the accusations. Washington has demanded his launch.