It’s a rare thing for golfers to see a hole-in-one any time they go to a course. Fitzgerald Craan saw something even rarer early Monday evening while playing Jackson Park Golf Course on Chicago’s South Side.

Chicago police say the National Transportation Safety Board is investigating the incident, along with the Federal Aviation Administration.

A wild scene Monday afternoon after a sightseeing helicopter was forced to make an emergency landing on a South Side golf course.The Chicago Fire Department said that a helicopter made a controlled landing due to mechanical issues at the Jackson Park Golf Course,

A helicopter was forced to make an emergency landing at a golf course in Chicago’s Jackson Park neighborhood on Monday evening. According to Chicago fire officials, the helicopter landed after what was described as a mechanical issue,

A helicopter is still sitting on the first hole at a South Side golf course, and the Federal Aviation Administration is still investigating what forced it to make an emergency landing there on Monday evening.

Authorities say a "mechanical issue" led to the emergency landing. Stocks Get Hammered After Donald Trump Refuses to Rule Out Recession 25 Movie Roles That Turned Actors Into Superstars Elon Musk exposes the 'biggest' source of fraud in the world 6 Red Flags You're About To Eat At A Tourist Trap Restaurant Steelers break tradition with DK Metcalf’s historic contract—their biggest deal ever Dave Ramsey went on a rant about 3 'illogical' money mistakes Americans make that 'baffle' him — here's how you can avoid these common financial errors Norway: Is It The Perfect Economy?