Police in Bavaria on Thursday arrested two Bulgarian nationals – a 28-year-old woman and a 38-year-old man – suspected of throwing incendiary devices at a construction site at the headquarters of Rohde & Schwarz, a company whose products include radar systems for detecting, tracking and jamming drones. The fire caused no significant damage and no injuries, officials said. Rohde & Schwarz confirmed a police and fire brigade operation near its premises.
Bulgarian Interior Minister Ivan Demerdzhiev promised cooperation but declined to give details.
The incident is the latest in a series of suspected sabotage attempts on German soil. Earlier this week, police investigated two attempts to sabotage the electricity grid within 24 hours in the states of Brandenburg and North Rhine-Westphalia. Authorities have said they cannot rule out either foreign involvement or domestic left-wing extremists. Interior Minister Alexander Dobrindt has said foreign powers could also use extremist groups as proxies for sabotage operations.
Last month, a drone attack on Leipzig/Halle airport caused outrage across Europe, and German authorities this week blamed Russia. Allies rallied round Berlin, with Poland and Britain summoning Russian diplomats, following similar steps by other European allies. German Foreign Minister Johann Wadephul welcomed an "impressive display of solidarity" as he met his Polish and French counterparts, adding: "I believe that its impact has not gone unnoticed in Moscow, either."
Russia strongly denies involvement and on Thursday announced it would close Germany's Goethe-Institut cultural centres, reciprocating similar moves from Berlin.
The drone attack is expected to be discussed when German Defence Minister Boris Pistorius meets his US counterpart Pete Hegseth in Washington later this month.
The developments come ahead of a closely watched state election in Saxony-Anhalt on Sunday, where the far-right, Russia-friendly Alternative for Germany (AfD) holds a commanding lead in surveys.