Carly Fiorina responds to Donald Trump's comments about her looks

• The billionaire reportedly made the comments watching Fiorina on TV
• He allegedly said: 'Can you imagine that, the face of our next president?'
• Fiorina, his Republican rival, said the comments were 'very serious 
• Added she could be 'getting under his skin' because of her poll numbers 
• It comes week after he said supermodel Heidi Klum was 'no longer a ten'

Donald Trump has mocked Republican rival Carly Fiorina's looks by saying: 'Look at that face. Would anyone vote for that? 

The controversial comments by the billionaire real estate developer were aimed at the only woman in the large field of GOP candidates vying for their party's 2016 presidential nomination.

Rolling Stone magazine reported that Trump, leading in the polls among the Republican contenders, made the remarks while watching Fiorina, the former Hewlett-Packard Co chief executive, on television.

Stirring controversy again: Donald Trump has mocked Republican rival Carly Fiorina's looks by saying: 'Look at that face. Would anyone vote for that?

It comes weeks after he stirred further controversy when he said super model Heidi Klum was 'no longer a ten'. 

'Can you imagine that, the face of our next president?' Trump is quoted as saying. 'I mean, she's a woman, and I'm not s'posedta say bad things, but really, folks, come on. Are we serious?'

Fiorina, in an interview on Fox News Channel, said she viewed Trump's remarks as 'very serious.'

'Maybe, just maybe, I'm getting under his skin a little bit because I am climbing in the polls,' she said.

The subject did not come up when Trump was interviewed on Fox News by host Sean Hannity, but Trump did express concern about his own looks, noting he had just returned from a trip to Washington.

'I haven't even looked at a mirror so I hope I'm okay. I hope I look fine,' said Trump.

'You look fine,' said Hannity.

Fighting talk: Trump is quoted as saying: 'I mean, she's a woman, and I'm not s'posedta say bad things, but really, folks, come on. Are we serious?'

It was not the first time Trump has taunted Fiorina. A month ago he tweeted: 'I just realized that if you listen to Carly Fiorina for more than 10 minutes straight, you develop a massive headache. She has zero chance!'

Trump's remarks were his latest barbs aimed at a woman during the campaign. Last month, Trump criticized Fox News Channel anchor Megyn Kelly during and after a Republican debate.

During the debate, Kelly had asked Trump about comments referring to women as 'fat pigs' and slobs. Asked about Kelly in a CNN interview last month, Trump said: 'You could see there was blood coming out of her eyes. Blood coming out of her wherever.'

Trump has touted his 'great relationships' with women, saying he had hired thousands of women including top-level employees, adding: 'I cherish women.'

Speaking out: Fiorina responded to his comments, saying they were 'very serious' and claimed that maybe she was getting under his skin because of her rising poll numbers 

It comes weeks after he stirred further controversy when he said super model Heidi Klum was 'no longer a ten'