The major blaze last week that shut down Gap Inc.’s regional distribution center in Fishkill, N.Y. was caused by arson, according to an official investigation of the site.

On Tuesday, the New York State Police and the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) said that based on their investigation of the fire that occurred on Aug. 29, the fire was incendiary in nature. “This means that the fire was intentionally set,” according to a statement.

The site location was released to Gap Inc. on Monday, but the investigation continues. The ATF said anyone with information relevant to the investigation should contact the police at (845) 677-7300.

Gap Inc.’s business going forward could be affected by the fire. There’s no word when it might resume operations. The facility, which the company refers to as a campus, is comprised of two buildings and has been handling orders from online customers and providing product to Gap Inc. stores. The fire occurred in the smaller, 1.3 million-square-foot building, which has been servicing primarily Gap, Gap Factory, Banana Republic and Banana Republic Factory stores in the Northeast. The larger, 1.9 million-square-foot building is primarily for Old Navy.

However, Gap has said that it has contingency plans in place to utilize its distribution centers in Tennessee and Ohio to continue to feed stores with products and serve customers. Gap’s ship-from-stores capabilities will also help the situation.

No injuries to Gap employees resulted from the fire, though one firefighter had minor injuries.