Streets near San Jose International Airport in California, USA were filled with foam after an alarm malfunction at a nearby jet hangar.
“It looks like a huge foam party gone bad,” a witness told ABC 7.
The foam piles grew as high as 10-feet while officials warned curious residents to stay away from the foam, as it can cause irritation upon contact with eyes and skin.
The owners of the hangar said no one was hurt when the foam came bursting out after the fire suppression system suddenly activated.
They plan to clean up the foam as quickly as possible to prevent the foam from causing harm to nearby bodies of water.
Local media reports that the foam deluge has stopped, and clean-up crews are being sent to the scene.