A robbery, gunfire and and large fight that occurred Saturday night at the Harrisburg Mall are under investigation by Swatara Township police.

Harrisburg Mall on Paxton Street in Swatara Township. Christine Baker | cbaker@pennlive.com

The incidents occurred at the mall's annual spring carnival, just after 10 p.m., police said.

In one case, a 12-year-old boy was reportedly jumped by three other juveniles after purchasing his admission ticket for the carnival. The boy was robbed of $12 dollars and his cell phone. The boy was able to get his cellular phone back, but said a fourth suspect joined the group and put a handgun to his head, police said.

The victim was unharmed, and the four suspects were seen leaving in a dark green SUV with a large dent in the rear bumper. The suspects are described as:

A light-complected juvenile black male with a "big afro," wearing navy blue clothing and navy and white Jordan sneakers.

A light-complected juvenile black male with a"curly mohawk," wearing navy blue clothing and navy and white Jordan sneakers.

A dark-complected juvenile black male with a "buzz cut," wearing a navy blue Polo shirt with a red logo and dark pants.

A black male wearing a black jacket and light gray pants , who had a gun.

As the SUV was leaving the property, the victim said he heard gunfire from somewhere at the carnival.

A Swatara Township police officer at the scene said he discovered a large fight, and that as he was trying to quell it, he saw a black male point a handgun into the air and fire two or three shots.

The officer gave chase, but the suspect was able to avoid capture in the large crowd of attendees. The suspect in the shooting is described as a thin black male wearing a black, possibly zip-up hooded sweatshirt with white letters on the front.

No one was hurt.

Police presence at the carnival has been increased due to these events, and investigations are under way, police said. The carnival continues through May 15, and runs 5-11 p.m. weekdays and 1-11 p.m. weekends.

Anyone with information is urged to call the Swatara Township Police at 717-564-2550 or submit a tip through the Swatara Township police web site.