Five people were shot at a school in Örebro, central Sweden, on Tuesday afternoon, according to police reports.

The incident occurred before 1:00 PM local time in the city, located approximately 200 km (124 miles) west of Stockholm. Authorities have not yet disclosed the severity of the injuries sustained by the victims.

In response, officials have urged residents to avoid the area as investigations continue. Authorities said that the danger wasn’t over, AP reported. The extent of the victims’ injuries wasn’t immediately clear.

“This incident is currently being treated as attempted murder, arson, and an aggravated weapons offence,” police said in a statement.

(This is a developing story. More details to follow.)