People living in a Bristol house were sprayed in the face with what is thought to be pepper spray by three men who broke in.
A police spokesman said the men then stole a laptop and television from the home.
The spokesman said the incident happened at about 0140 BST on Wednesday on Station Road in Filton.
The three are described as aged in their early 20s. Two are black and one is white.
Anyone with information is asked to contact the force.