The FBI said Sunday it was investigating “what appears to be an attempted assassination” of Donald Trump at his golf club in West Palm Beach, Florida, just nine weeks after the Republican presidential nominee survived another attempt on his life. Trump said he was safe and well.

The U.S. Secret Service opened fire at a man pointing an AK-style rifle into the club as Trump was on the course, three law enforcement officials said. The person dropped the weapon and fled in an SUV, and was later taken into custody in a neighboring county. The officials were not authorized to discuss the ongoing investigation and spoke to The Associated Press on condition of anonymity