Police are asking for the public's help to gather information about a sexual assault in Far North Dallas on Friday night.
The incident happened at about 11 p.m. in Katie Jackson Park near apartments in the 4900 block of Haverwood Lane, Dallas police said.
The park also serves as an entrance point to a four-mile-long bicycle trail along White Rock Creek.
Police said a woman was walking through the park when a man started to talk to her. During the encounter, police said the man "overpowered the victim and sexually assaulted her."
Police released the below sketch of the suspect on Monday.
Police asked residents who live nearby to be alert and to contact authorities if they have information about the assault.
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“Our investigators were out there at the scene today seeing if there was any evidence that we were able to collect or we missed,” Dallas police deputy chief Albert Martinez said on Tuesday. “We also sent out our uniformed drones.”
Martinez urged park visitors to always be aware of their surroundings, bring a friend and avoid late-night visits.
“Most of these predators do tend to re-victimize. They're out there trying to find another victim,” he said.
The suspect was described as a dark-skinned man, about 5 feet, 11 inches tall between 40 to 50 years of age. He had a mustache with gray hair and has a possible razor burn on his neck.
Information can be reported to Crime Stoppers at 214-373-TIPS or through the iWatchDallas app.
Police encouraged people to practice safety measures, such as going out with a friend, letting a friend or family member know where they will be, staying in well-lit areas and being aware of surroundings.