Trump in "excellent" health, according to latest doctor note

Republican presidential candidate Donald Trump's campaign has released a new doctor's note which states that the 70-year-old is in "excellent physical health", as the race for the White House increasingly focuses on the nominees' physical condition.

Trump would become the oldest president in the United States' history if he were to be elected on November 6.

He had previously been reluctant to release medical records, as well as additional information relating to his taxes and businesses.

Democratic rival Hillary Clinton was forced to cancel three days of campaigning, including a trip to California, after leaving a 9/11 commemoration ceremony abruptly on Sunday morning. She had previously been diagnosed with pneumonia but her campaign decided not to disclose the information initially.

Trump and his supporters have attacked the former Secretary of State's supposedly weak mental and physical condition, with the Republican questioning her ability to deal with pressure situations in a speech in Ohio.

In the press release revealing the New York tycoon's doctor's note, the campaign took a veiled swipe at its rival.

"We are pleased to disclose all of the test results which show that Mr. Trump is in excellent health, and has the stamina to endure — uninterrupted — the rigors of a punishing and unprecedented presidential campaign and, more importantly, the singularly demanding job of president of the United States," the statement read.