Explosion rocks Swedish capital, gas leak suspected

A powerful explosion has rocked central Stockholm.

Friday's blast happened in the Sodermalm area of the Swedish capital.

Initial reports claim that the explosion was caused by a gas leak.

Police are at the scene, and at least one street has been sealed off.

''It is unclear what happened,'' police spokesman Albin Naverberg told local newspaper Aftonbladet.

Investigations are ongoing.