Firefighters are battling a fire at a factory in Ansonia.
The three-alarm fire is at the Farrel Corp. factory at 25 Main Street, according to fire officials.
Firefighters have run hoses across railroad tracks, affecting trains on Metro North's Waterbury Branch, according to a Metro North spokesperson.
Emergency crews expect to be at the scene for several hours, according to fire officials.
There is no word on injuries.
