A lime green liquid leaked from the ceiling and formed fluorescent puddles onto the floor at Miami International Airport on July 4th.

The mysterious fluid dripped from the ceiling in Concourse G around 9 a.m. E.T.

“We would like to thank our passengers in Concourse G for their patience & understanding this morning. At approximately 9 am, we received reports of a broken pipe in Concourse G. Crews were immediately dispatched to investigate and it was determined that the liquid from the leak was not hazardous. Cleanup efforts were completed within 90 minutes,” Miami International Airport wrote.

NBC 6 South Florida reports:

Authorities originally said the mysterious liquid was glycol, but later said it was actually “water from the AC system with a green dye in it so if there if there is ever a leak it can traced to its source. Totally non-hazardous,” according to Miami-Dade Aviation Department Communications Director Greg Chin.

The airport did not say it was experiencing any delays as a result, which is good, considering that TSA expects to screen a record number of people this July Fourth weekend.

“The valve feeding the pipe has been closed to stop the leaking, and cleanup efforts are now underway,” the airport said in a statement.

Part of the area was sectioned off with yellow caution tape as travelers snapped pictures and took videos.

Per Daily Mail:

Footage of the incident shows the fluorescent fluid leaking from the ceilings of the concourse as shocked passengers walk around it.

‘That’s literally insane,’ one female passenger is heard saying as the green liquid covers the floor.

Another person recording the floor near a gate says: ‘Oh my God, look at the airport. What happened?’

The camera pans to several seating areas in the airport where almost the entire floor has been covered in the green fluid.

The airport said it was not experiencing any flight delays as a result of the leak.

A spokesman said: ‘The valve feeding the pipe has been closed to stop the leaking, and cleanup efforts are now underway.

‘We would like to thank our passengers in Concourse G for their patience and understanding.’

Glycol is a ‘useful industrial compound found in many consumer products’, according to the Centers for Disease Control and Prevention.

‘Examples include antifreeze, hydraulic brake fluids, some stamp pad inks, ballpoint pens, solvents, paints, plastics, films, and cosmetics.’

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