A man reportedly attacked the victims with a chainsaw.
Police are searching for the male suspect.
The attack - which the authorities stated was not terror-related - was reported to the police a little after 10:30 in the morning. The suspect entered the local branch of the CSS insurance company where he deliberately attacked staff members, according to a company spokeswoman, reported Swissinfo.
Swiss Public Television SRF has tweeted past picture of the suspect.
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