(Yicai Global) March 11 -- Tesla has refuted a media report which claimed that hackers could get access to surveillance camera footage inside the US new energy vehicle maker's Shanghai Gigafactory.

The breach affected a supplier's facilities in China's Henan province but not Tesla's Shanghai plant, the Paper reported, citing the California-headquartered company. Those cameras in central China are now offline to improve security, it added.

Bloomberg reported yesterday that a group of hackers had managed to gain access to live feeds of 150,000 surveillance cameras operated by Silicon Valley startup Verkada. One of those videos was shot inside Tesla's warehouse in Shanghai, according to the report. More than 220 cameras in Tesla factories and warehouses were supposedly compromised.

The carmaker only uses a small number of Verkada cameras for remote quality control in the supplier's factory, said Tesla China. The auto company's other cameras are not connected to the internet and the data are stored locally.

Editor: Emmi Laine, Xiao Yi