The first one occurred at 10:25 p.m on the 1800 block of American Street.
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Then just after midnight, another driver was carjacked on the 6600 block of Large Street.
And just 15 minutes later, a third driver was carjacked at 5th Street and Olney Avenue.
Police say around 12:30 a.m. another carjacking was reported on the 7300 block of Crispin Street.
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In each case, the victims describe two to four men who either acted like they needed help or blocked the driver in before showing a gun and stealing the vehicle.
No injuries were reported.
Police are still searching for the suspects.