Local fire and rescue service says last week’s tragic incident highlights risks the batteries can pose

A fire that left a mother and her three children dead was caused by a lithium-ion battery, firefighters in Merseyside have said.

An electrical event caused the battery, which is commonly used in vapes, ebikes and e-scooters, to go into “thermal runaway”, Merseyside fire and rescue service (MFRS) said in a statement.