A Greenpeace protester floated surprisingly close to US President Donald Trump on Friday evening at his golf resort in Scotland, breaching a no-fly zone and wielding a banner that read, "TRUMP, WELL BELOW PAR #RESIST."
Scottish police said Saturday that the protester somehow escaped after the incident, and officers have yet to track the person down.
Assistant Chief Constable Mark Williams told the BBC that the protester put himself "in grave danger."
"On this occasion we could assess the situation and we realized there was no direct threat to the president, however it's absolutely something that is very serious," Williams said.
The activist group also tweeted a video showing the protester zooming over the crowds at Turnberry, veering close to Trump. Greenpeace said it told police about the paraglider roughly 10 minutes in advance.
The Secret Service told CNN in a statement it is "working with our foreign law enforcement partners as they investigate the circumstances surrounding an aircraft (paraglider) that flew into unauthorized airspace in Scotland."
The paraglider was among the roughly 10,000 protesters who turned up to the golf resort and in Edinburgh on Friday and Saturday.
On a beach outside the resort, a dozen demonstrators staged a "protest picnic," chanting "Trump is a racist! Trump is a liar!" as hotel guests played golf just 100 yards away.
The demonstrations came after anti-Trump protesters in London floated a 20-foot blimp depicting Trump as a baby wearing a diaper and holding a phone. Trump told the British newspaper The Sun that the blimp made him feel "unwelcome."
The Associated Press contributed reporting.
Receive a single email every morning with all our latest news: Sign up here.
Also from Business Insider South Africa: