Powerful explosion badly damages Swedish police station in 'attack against society'

A powerful explosion has caused significant damage to a police station in southern Sweden.

Authorities said no one had been hurt by the early-morning blast, which went off at the main entrance to the station in Helsingborg.

Detectives have not said what caused Wednesday's explosion but the country's top police official, Dan Eliasson, described it as "an attack against society".

No one has been arrested.

The explosion at 5.30am local time badly damaged the building's entrance and shattered dozens of windows in nearby buildings.

No one has claimed responsibility for the blast, about 30 miles north of Malmo, Sweden's third largest city.

Suburban feuds between criminal gangs fighting over territory have taken place in major Swedish cities in recent years.

The explosion was not immediately being investigated as terrorism.