A shooting took place on the grounds of the Trump International Golf Course West Palm Beach on Sunday while former President Donald J. Trump was at the course, the Palm Beach County Sheriff’s Office said, but officials said that Mr. Trump was safe and that the intent was unknown.

“President Trump is safe following gunshots in his vicinity,” Steven Cheung, the Trump campaign’s communications director, said in a statement. “No further details at this time.”

Teri Barbera, a spokeswoman for the Palm Beach County Sheriff’s Office, confirmed that a shooting took place “on the grounds” of the Trump International Golf Course West Palm Beach while Mr. Trump was present. A “person of interest” has been detained, she said.

“The intent right now is unknown,” Ms. Barbera added. A news conference was expected this afternoon.

The U.S. Secret Service said that it was investigating “a protective incident involving former President Donald Trump” in conjunction with the Palm Beach County Sheriff’s Office that occurred shortly before 2 p.m.

“The former president is safe,” the Secret Service said. “We will have more details soon.”

A White House official said in a statement: “The president and vice president have been briefed about the security incident at the Trump International Golf Course, where former President Trump was golfing. They are relieved to know that he is safe.”

This is a developing story.