BERLIN A 21-year-old Syrian refugee was arrested on Sunday after killing a pregnant woman with a machete in Germany, the fourth violent assault on civilians in western Europe in 10 days, though police said it did not appear linked to terrorism.
The incident, however, may add to public unease surrounding Chancellor Angela Merkel's open-door refugee policy that has seen over a million migrants enter Germany over the past year, many fleeing war in Afghanistan, Syria and Iraq.
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