An electronic device overheating in a bag of a Tube passenger has triggered panic at the Chancery Lane station in London today.
Passengers in the carriage reportedly started screaming and running as sparks and smoke started coming out of the man’s bag when the gadget ignited.
The man immediately spoke to a member of staff to prevent spreading of the panic.
"It looks like a battery in a passenger's device which he had in his bag has overheated, and that is what caused the sparks and smoke to come from his bag,” said British Transport Police spokesman.
"We don't know what the device is, if it is a laptop or a computer. We are not treating it as a suspicious incident, and nobody was hurt."
Some of the passengers from the affected train described the experience on Twitter.
"Tube: Smoke and sparks coming from cannister in carriage at Chancery Lane. Crying girlfriend thought she would die," wrote Jez Smith.
Another witness, Natasha James, wrote: "Stuck at Chancery lane, smoke everywhere something went off in a man’s bag on the tube. Everyone screaming and running. Horrible experience."
Overheating of electronic devices that could result in fire has already been described previously.
Last month Panasonic recalled more than 43,000 laptop battery packs after three of them caught fire in Japan and Thailand.
The batteries were sold to customers in Asia with a Panasonic CF-S10 and
CF-N10 series laptop between April and October 2011.
The firm issued a separate recall in Europe as a safety precaution involving an unspecified number of battery packs sold with its Toughbook CF-H2 tablets between June 2011 and May 2012.
In April, Sony announced a recall of its Vaio Fit 11A laptops because their non-removable battery packs posed a fire risk.
There is no suggestion that Panasonic or Sony manufactured the device which caused panic at Chancery Lane station.