Atlanta police are trying to determine who shot up a downtown print shop early Monday, and why.

The shooting happened about 2:15 a.m. at the PostNet store in the Twelve Hotel on West Peachtree Street at Ivan Allen Boulevard, which is near Centennial Olympic Park.

“Witnesses advised that three males exited a black SUV and fired several shots in the direction of the building,” Atlanta police spokeswoman Kim Jones said. “Officers recovered several .40 caliber shell casings on the west side of the street.”

Several of the shop’s plate glass windows were shattered by bullets.

About two hours later, burglars smashed through two sets of glass doors to gain entry to a West End clothing store.

The thieves first smashed their way through the entrance doors to The Mall West End before breaking in the Jimmy Jazz store inside the mall.

Police have not said what was taken in the burglary.