A barn fire formed a mushroom cloud in Lancaster County Wednesday night.
Fire crews in East Donegal Township were called to a barn fire along Donegal Creek Road in East Donegal Township around 11 p.m.
The barn on fire was located at series of structures including a milking barn, straw and hay storage and a workshop, according to Emergency Dispatch Services.
The exact cause of the mushroom cloud is unknown. A variety of theories are been made including fuel tanks or a gas line, according to dispatch; one commenter on social media said it was a 55 gallon container of drain oil.
The fire marshal has not released an official statement on this fire.
Crews left the scene at 3:45 a.m. on Thursday, according to the fire department.
Click here to sign up for Daily Voice's free daily emails and news alerts.