Firefighters from Fire Station 30 in Fairfax County responded to the report of a fire early Sunday morning, at the Merrifield Recycling Center, according to the Fairfax County Fire & Police Department.

Units arrived to find water and smoke coming out of the indoor recycling facility, prompting a request for a second alarm. Additional units from Fairfax and the Arlington County Fire Department arrived soon after.

No injuries were reported from the scene. Fire damage was limited to recyclable materials. The fire sprinkler system and use of firefighting foam limited the damage to $1,000.

Investigators determined the fire started from an exothermic reaction in one of the recyclable material piles, which caused the materials to catch on fire.