German authorities have arrested a Ukrainian man suspected of spying on a defense company in Bavaria to prepare possible acts of sabotage.

Investigators suspect he took images of the firm's premises in June and passed them to a foreign intelligence service.

The 33-year-old was detained in the eastern state of Thuringia on Sunday and is now in pretrial detention, Munich prosecutors and Bavaria's State Criminal Police Office said on Thursday.

This is a breaking story that will be updated.

Edited by: Roshni Majumdar