By Steve Beck

PHILADELPHIA (CBS) -- Police are searching for several teenagers who choked and stole an iPhone from a 13-year-old in Philadelphia.

The incident happened at about 3:45 p.m. on February 20th in the 700 block of North 22nd Street in the city's Fairmount section.

According to investigators, the 13-year-old victim was walking down the street when he was approached from behind by the four suspects.

WATCH: Surveillance Video

Police say one of the suspects wrapped his arms around the victim's neck and wrestled him to the ground.

While on the ground, the suspects took the victim's i-Phone and ran from the scene.

The victim suffered injuries to his lip and cuts to his left hand as a result of the attack.

The suspects are described as four black males, approximately 14-16 years old, wearing hooded-sweatshirts and hooded-jackets, with three carrying backpacks.

Anyone with information is urged to call 911.