The police were called to the scene at half past nine on Monday evening.
According to the police, five people were slightly injured in connection with the explosion. Three of them were taken to hospital by ambulance, but at 11 p.m. they were judged to be ready to leave the hospital shortly.
There has also been material damage to the house and surroundings.
Pictures from the scene show a gate where the door has been blown away. There is glass and other debris on the ground.
The crime is currently classified as public destruction. According to the police, no suspect has yet been arrested.