EDISON - Firefighters have contained a multi-acre brush fire near the News 12 New Jersey studio in Edison.

Fire officials say crews from several departments were called in just after noon Thursday to help with the blaze, which was burning in a marsh area located inside Raritan Center Industrial Park.

State forest fire crews used a helicopter to douse the flames.

Smoke from the fire could be seen for miles away. Video from Chopper 12 showed acres of charred grass and thick smoke.

About 250 acres have been burned, according to fire officials.

Authorities have not said how the fire was started.

For extended video of the brush fire, watch the clip to the left or go to News 12 Extra on Optimum TV channel 612.