India, Feb. 13 -- President Donald Trump has sparked fresh health concerns after appearing to slur his words during a White House speech at an event that was celebrating him as the "Undisputed Champion of Coal."

Trump's delivery briefly became unintelligible during the speech for some seconds.

Although the White House has frequently defended the president's health, claiming he is still fit and capable, social media usersclaim the most recent event is part of a larger trend of odd public appearances and inconsistent excuses that have fueled discussion about his suitability for office.

Video clips of Trump's speech show him beginning a sentence before becoming incoherent for several seconds. In the short stretch, Trump mumbled and appear...