The police believe the recent spate of killings have been fuelled by the availabilty of firearms, and intensifying gang rivalry. The authorities say they have seen an increasing readiness in the part of young gang members to resort to violence, often over petty disagreements.
A 26-year-old man was shot dead last week in the town of Södertälje, south of Stockholm, over what police describe as a neglible amount of money.
The police say that it is easy to obtain weapons, and those that do so are getting younger. Youths are more predisposed to use firearms, and are increasingly being targetted for recruitment to criminal gangs.
The police say they believe the number of illegal weapons held in Sweden has increased in recent years, despite an amnesty on such weapons earlier in the year.