CROYDON, Pa. (WPVI) --Bucks County fire crews battled a three-alarm blaze Friday night in Croydon.
Chopper 6 flew over the 2900 block of State Road just after 5.
Flames and thick smoke could be seen pouring from the commercial building called Railway Specialties Corporation.
The company manufactures airtight doors and hatches for aircraft carriers, and also other metal products for ships.
It took firefighters nearly three hours to get the blaze under control.
No one was hurt and no word yet on what sparked the flames.