Google said Thursday it fired 48 employees, including 13 senior executives, in the past two years as a result of sexual harassment allegations, citing "an increasingly hard line" on inappropriate conduct.

The U.S. tech giant issued the statement from Chief Executive Sundar Pichai in response to a New York Times report that one senior Google employee, Android creator Andy Rubin, received an exit package worth $90 million as he faced allegations of misconduct, and that Google had covered up other claims of sexual harassment.

Asked by AFP and other media for its reaction, Google released an email sent to employees from Pichai stating that 48 people had been terminated for sexual harassment in the past two years, including 13 who were senior managers and above and that none received "an exit package."

"In recent years, we've made a number of changes, including taking an increasingly hard line on inappropriate conduct by people in positions of authority," Pichai said.

He added that the report on Rubin and others "was difficult to read" but he did not directly address the claims in the article.

"We are dead serious about making sure we provide a safe and inclusive workplace," he said. "We want to assure you that we review every single complaint about sexual harassment or inappropriate conduct, we investigate and we take action."

Sam Singer, a spokesman for Rubin, rejected the allegations against him in a statement to AFP, saying Rubin left Google of his own accord to launch venture capital firm and technology incubator Playground.

Rubin went on to found smartphone company Essential. The Android operating system, which Google makes available to device makers free of charge, powers about 85 percent of the world's smartphones.

The New York Times cited court documents and interviews while reporting that Rubin was one of three senior executives that Google has shielded in the past decade after complaints of inappropriate sexual behavior.

The Times cited two unnamed Google executives as saying that then-chief executive Larry Page asked for Rubin's resignation after the company confirmed a complaint by a woman about a sexual encounter in a hotel in 2013.

A Google investigation found the woman's complaint credible, the Times reported.

The latest revelation is certain to add to the growing chorus of voices denouncing sexist culture echoing through male-dominated Silicon Valley, which has knocked a number of internet industry executives at other tech giants from their perches.

Accusations concerning the lack of women in tech jobs and unfair or crude treatment endured by some in the industry have simmered for years, occasionally reaching a boil.

Uber's embattled chief executive Travis Kalanick resigned last year, yielding to pressure from investors seeking to clean up the company's allegedly toxic corporate culture.

Before Kalanick's departure, Uber said it had fired 20 people after examining 215 claims of discrimination, harassment, unprofessional behavior and bullying.