Calls by the Liberal Democrat president Tim Farron for a ban on Chinese lanterns have been played down by Downing Street, in the wake of the Smethwick fire.
"The actual number of fires caused by Chinese lanterns is very small," a No 10 spokesman said.
"It is important that we always ensure that there is a proportionate response to any event and we always look at safety matters and make sure they are kept at the top of our concerns."
Firefighters are struggling to deal with a fire at a recycling plant in the Midlands which was started by a stray Chinese lantern.
Around 50,000 tonnes of plastic recycling material and a factory is on fire in Smethwick.