Two fire engines attended an incident where a firework had been lit and fired through a letterbox into a building on Swanee Road, Kendray, Barnsley after a call was received at 8.26pm.
Crews cleared the smoke with a positive pressure fan and treated one person for smoke inhalation.
Firefighters left the scene at 9.23pm.
The fire service lists the cause as deliberate. Crews from Barnsley and Cudworth stations attended the incident on 31 October 2026.
