A former Google executive has raised concerns about the tech giant's human rights policies as it eyes expansion in China and elsewhere.

Axar.az reports citing BBC.

Ross LaJeunesse, the firm's former head of global international relations, said he was "sidelined" after he pushed the company to take a stronger stance.

Google defended its record in a statement, saying it has an "unwavering commitment" to human rights.

Mr LaJeunesse is now campaigning for a seat in the US senate.

He said his experience at Google convinced him of the need for tougher tech regulations.

"No longer can massive tech companies like Google be permitted to operate relatively free from government oversight," he wrote in a post on Medium.