US presidential candidate Jeb Bush has said he is personally offended by rival Donald Trump's remarks about Mexico and immigrants, describing them as "ugly" and far outside the mainstream of Republican thought.

"I don't think he represents the Republican Party and his views are way out of the mainstream of what Republicans think," Mr Bush told reporters after marching in July 4 parades in New Hampshire.

"No one suggests we shouldn't control our borders - everybody has a belief we should control our borders. But to make these extraordinarily ugly kind of comments is not reflective of the Republican Party. Trump is wrong on this."

Mr Bush's wife was born in Mexico, and when he was asked if he took Mr Trump's remarks personally, he said: "Yeah, of course. Absolutely. And a lot of other people as well."

When property mogul and The Apprentice TV host Mr Trump announced his presidential bid last month, he criticised Mexico and immigrants who come to the US illegally, saying: "They're bringing drugs. They're bringing crime. They're rapists."

In spite of earlier criticism from Mr Bush and other Republicans and companies moving to sever business ties with Mr Trump, the owner of Ayrshire's Turnberry Hotel has defended his remarks.

Meanwhile, Democratic presidential candidate Hillary Clinton has accused China of stealing commercial secrets and "huge amounts of government information," and of trying to "hack into everything that doesn't move in America".

Speaking at a campaign event in New Hampshire, Mrs Clinton said she wanted to see China's peaceful rise.

"But we also have to be fully vigilant, China's military is growing very quickly, they're establishing military installations that again threaten countries we have treaties with, like the Philippines because they are building on contested property," said Mrs Clinton, who was Secretary of State from 2009 to 2013.

She is the front-runner to win the Democratic nomination for the November 2016 presidential election.

Asked about the remarks, a White House official declined to comment.

In the most recent case involving suspicions of Chinese hacking, Obama administration officials have said China is the top suspect in the massive hacking of a US government agency that compromised the personnel records of at least 4.2 million current and former government workers.