Trump was moving between holes five and six when the shots erupted, a source briefed on the matter told CNN.
He was golfing with donor Steve Witkoff, according to a source familiar with the matter.
The suspect who the Secret Service engaged with was a number of holes ahead of the former president, according to two law enforcement sources.
The Secret Service confirmed that while on the golf course, Trump moved in a security “bubble”, with agents before and behind him.