D.C. police have made arrests in three armed robberies that occurred Thursday and earlier this month in different parts of the District.

Two of the robberies occurred early Thursday, the first about 12:45 a.m. in the 1800 block of Hamlin Street NE, near Rhode Island Avenue in the Brookland neighborhood. Police said a gunman started talking to a person in a parking lot, then robbed him at gunpoint.

At about 3 a.m., police said, the same man robbed a person at Ninth Street and Missouri Avenue NW in Brightwood. A man in a car purposely rear-ended a vehicle, then robbed the driver of money, police said.

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Phillip Thompkins, 25 of Northeast, has been charged with two counts of robbery while armed in connection with the incidents. He was arrested Thursday.

Also on Thursday, police arrested a suspect in connection with a Jan. 5 armed robbery of a person in the 4300 block of Ninth Street SE in Washington Highlands. In that incident, police said, an armed man approached a pedestrian, demanded money, then pushed her down while stealing her purse.

Police have charged Brandon Anthony Wilson, 23, of Southeast, with one count of armed robbery.

Robberies in the District are up 28 percent this year — from 217 at this time in 2015 to 277 so far this year.