Dallas police have released a sketch of the man who sexually assaulted a teenager and a woman in her 20s near a bus stop.
Police said both attacks occurred on Tuesdays near a Dallas Area Rapid Transit stop at Walnut Street and Audelia Road.
"I am concerned that if he's done it twice that he will attempt to do it again," Deputy Chief Sherryl Scott said.
Investigators said the man with a gun approached a teenager who was walking to the bus stop, forced her into a dumpster area in the 9600 block of Walnut Street and sexually assaulted her May 29.
Police said a woman in her early 20s was assaulted in a similar attack in the 12700 block of Audelia Road on June 5.
One attacked occurred in the morning, and the other was in the evening. The man also stole the victims' cellphones so they don't have a way to call for help.
Dallas police have increased patrols in the area.
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Nearby business owners said they were disappointed to learn of the attacks form news reporters instead of police.
"Anytime something like this happens, if they let us know, we will be vigilant [in] watching what is going on," said Hanif Akhawala, who owns a small market on the corner near the bus stop. "But in this case, I don't understand why they were so slow."
Akhawala posted a copy of the sketch on his door.
"If something like this happens, I always worry about them, because I have to take care of my customers," he said.
Dallas police said anyone with information should call 214-671-3615.
NBC 5's Ellen Goldberg contributed to this report.
