A 16-year-old acquaintance of a Texas teen who disappeared while walking her dog in June has been arrested in connection to her death, police said Friday.

The Bedford Police Department said the unidentified teen arrested in the death of 14-year-old Kaytlynn Cargill was detained earlier Friday and taken to the Tarrant County Juvenile Detention Center in Fort Worth. No additional details were given.

“We want to take this opportunity to reassure our community that they are not at risk,” police said in a statement. “As we have said from the beginning, to protect the integrity of the investigation, we cannot and will not discuss any specifics related to this case.”

Kaytlynn was found dead in an Arlington landfill June 22, just days after she disappeared while walking her dog in Bedford. The Tarrant County medical examiner later ruled that she died as a result of “homicidal violence” but provided no additional details, NBC 5 Dallas-Fort Worth reports.

Kaytlynn’s mother, Trisha West, told police she found her daughter’s dog tied to a fence at a dog park while she searched for the teen.

“I went out looking for her after she didn’t come back for like 30 minutes,” West told the Dallas Morning News in June.

Police in Bedford initially said there was no indication Kaytlynn was abducted and treated her disappearance as a possible runaway case.

“Our detectives, as they have done from the beginning, continue to work diligently on this case and will do so to its conclusion,” Bedford police said in a statement Friday.