In each incident, robbers approach in a stolen vehicle and display handguns before taking the victim's property by force.
Police said there have been three armed robberies reported since the start of October:
- Around 5:15 p.m on Oct. 1 in the 3300 block of West Fulton Boulevard,
- Around midnight on Oct. 5 in the 4100 block of West Roosevelt Road,
- Around 2:17 a.m. on Oct. 5 in the 2200 block of South Pulaski Road
Police also issued an alert Sunday for armed robberies in the Chinatown and Armour Square neighborhoods.