CHICAGO (CBS) — Police seek two thieves who have been robbing people over the past week in the West Loop.

The victims are distracted, sucker punched, and then robbed of smart phones, purses or wallets.

READ MORE: South Shore Woman Sees Police Activity After Shooting Leaves Man Dead, Only To Find Out It Was Her Own Beloved Brother

The first occurred last last Wednesday night on the 1200 block of West Randolph Street. The second occurred mid-morning Friday on the 800 block of West Randolph Street and the third that afternoon on the 1000 block of West Lake Street.

READ MORE: Chicago Weather: Patchy Frost Well Inland

The Guardian Angels are leafleting in the area. They are urging people in the area to be aware of what’s going on nearby by putting away headphones and cell phones and not speaking with strangers. They are also urging smart phone owners to activate tracking devices on their phones.

The robbers are described as 16-to-20 years of age, with dark complexions and dreadlocks. They are between 5-foot-6 and 5-foot-11 and weigh 125 to 170 pounds.

MORE NEWS: Constituent Says She And Others Were Kicked Out Virtual Meeting With Embattled Ald. Jim Gardiner, And Alderman Isn't Providing Answers

Anyone with information about the robberies should call Area Central detectives at (312) 747-8380.