US electric vehicle maker Tesla has said it has sent a team to investigate a video on Chinese social media which showed a parked Tesla Model S car exploding, the latest in a string of fire incidents involving Tesla's cars.

The video, time stamped as happening yesterday evening and widely shared on China's Twitter-like Weibo, shows the parked car emit smoke and burst into flames seconds later.

A video purportedly of the aftermath showed a line of three cars completely destroyed.

Reuters was not immediately able to verify the origins of the videos, which Weibo users said were taken in Shanghai.

The cause of the explosion could not be immediately ascertained from the videos.

"We immediately sent a team onsite and we're supporting local authorities to establish the facts. From what we know now, no one was harmed," Tesla said in a statement.

There have been at least 14 instances of Tesla cars catching fire since 2013, with the majority occurring after a crash.

The automaker has said its vehicles are about 10 times less likely to experience a fire than petrol-powered cars, based on its fleet of over 500,000 vehicles which have driven more than 10 billion miles.

It did not specify whether the statistic referred to normal use or involving accidents.

The latest incident comes as Tesla tries to push sales in China, where its prices were impacted by tit-for-tat tariffs imposed during Sino-US trade tensions last year.

The automaker currently imports all the cars it sells in China, but is building a factory in Shanghai that will initially make its Model 3 and help reduce the impact of a trade war.

In March, Tesla was also on the receiving end of a labeling mix-up at Shanghai customs that led to a temporary suspension of clearance for a batch of Model 3 cars.

Analysts said the latest fire incident would likely increase attention on the safety of the vehicles but was unlikely to have a significant impact on Tesla's sales or reputation in China while the cause was being investigated.