Two men armed with an axe entered the shop at 3.30pm on Wednesday and began attacking two employees.
“One was struck on the head with the axe. I don’t know if they were seriously injured,” said police spokeswoman Ann-Charlotte Wejnäs.
The thieves smashed open a display cabinet before disappearing on a moped. Police have not yet been able to ascertain the value of the goods stolen in the raid.
The crime scene has been sealed off to allow police technicians to conduct a forensic analysis.