At least five people are injured, two seriously, after an attack by an unidentified man wielding a chainsaw in the Swiss town of Schaffhausen, according to local police.
Officers have confirmed to local news site Blick that the man was carrying a chainsaw. The suspect has also been described as standing 190cm in height, with a bald head and what has been described in some reports as an "unkempt appearance."
It is also believed that he has been driving a Volkswagen vehicle with Swiss number plates.
The Metro reported that the attack started in a book shop called World View, near a McDonald’s where witnesses saw a man with a bleeding head.
Police have told local residents to stay away from the Muller-Bluck area, and the alleged perpetrator is still at large. Armed police are also reportedly sweeping shops and apartments in a search for the suspect.
However, police have confirmed that this is not an act of terrorism.
Witnesses posted footage on social media showing the area in complete lockdown, while some people reported being barricaded in shops as Schaffhausen went into lockdown.
A spokesman for the local cantonal police confirmed emergency personnel had been dispatched to the scene. Swissinfo reported that rescue helicopters are also circling overhead.
Cindy Beer, a spokeswoman for Swiss police has said: "We can't say exactly what happened at this point. We just know that a person wounded several people."