An armed robber forced Chuck E. Cheese employees into a freezer during a robbery early Sunday morning, Indianapolis police said.The incident happened at about 8 a.m. at the restaurant in the 4900 block of West 38th Street.An employee told police that as he took out the trash, a masked man with a black and gray handgun approached and ordered him and other employees to go inside."Once inside, the suspect made the victims open the safe in the office," read part of a police report. "An unspecified amount of money was stolen from the business."Police said the robber then ordered the victims to get in a walk-in freezer and lay down until he left. No one was injured.Police said they found that a hole had been punched in the exterior wall of the business and that natural gas pipes leading to the business appeared to have been damaged. Investigators said they don't know if those discoveries were connected to Sunday's robbery.Police think the same man may be behind more than one similar robbery in the area. He was described as black, about 6 feet tall, with a thin build. He was wearing all black clothing and was carrying a black book bag, the victims told officers.Police asked anyone with information to call Crime Stoppers at 317-262-TIPS.