The Bishop of St Albans received the following written answer on 13th December 2022:
The Lord Bishop of St Albans asked His Majesty’s Government whether they will list all incidents of fires having been caused by sky lanterns in the last five years.
Lord Sharpe of Epsom (Con): Data collected through the Fire and Rescue Service Incident Recording System (IRS) does not include data on whether fire incidents attended were caused by or involved sky lanterns.
The Home Office collects data on incidents attended by Fire and Rescue Services (FRSs), with this data including the cause of the fire and the source of ignition. This data is published in a variety of publications, available at Gov.UK.