Swiss police have arrested a 28-year-old Australian man suspected of stabbing and seriously injuring a 41-year-old man in a shop in central Zurich, authorities said. The motive for the attack on Saturday is still under investigation,

The suspect, a Syrian refugee, told the police that a plan had come into his mind to kill Jews. The attack raises tensions just before an election in which immigration is a big issue.

Authorities in Berlin have detained a teenage Syrian refugee after a man was stabbed near the city’s Holocaust Memorial late Friday – as divisive rhetoric swells over Germany’s immigration policy, ahead of a consequential national election.