Police in the city of Bern are asking for any witnesses who may have seen a stabbing on a tram on Saturday afternoon.
The victim was able to get off and seek help himself.
The attack was on a tram just before the Europaplatz stop. The attacker is described as 1 meter 80 tall and around 30 years old.
Police are not releasing any motive for the attack.
A new hotline for victims of domestic violence - 142
A new hotline for victims of domestic violence opens today; accessible 24/7 and across the country.
Ikea slammed for pricing practices
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Champions and younger runners in this year's Geneva Marathon
Record numbers, and a younger crowd, are set for the Geneva Marathon this year.
French customs officers using blue lights in Switzerland
Geneva police stopped a car with blue flashing lights and french license plates on the autoroute near Bardonnex.
Drivers stuck as extremely long red light
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Shock neck and neck opinion poll result
Voters are heading for a tight decision on immigration.
