Two people have died at the D.C. Jail since Friday, a Department of Corrections spokesperson confirmed Monday afternoon.

Twenty eight-year-old Ramone O’Neal was found unresponsive in D.C.’s Central Detention on Friday morning at 2:15 a.m., and pronounced dead shortly after 3 a.m. He showed no signs of trauma and no signs pointed to suicide, the spokesperson said. His cause of death is unknown and it is under investigation.

Then, on Sunday, two cellmates suffered possible drug overdoses at the Central Detention Facility, according to the spokesperson. One of those men, 37-year-old Sean Lee, was found unresponsive inside his cell at 4:24 p.m. and pronounced dead at 5:02 p.m. The spokesperson said he showed no signs of trauma and there was no evidence pointing to suicide as a cause.

According to the spokesperson, DOC employees also found his cellmate in medical distress at the same time, but he survived after they administered CPR and gave him a dose of naloxone (commonly known by the brand name Narcan), a medication that reverses opioid overdoses.

The spokesperson said that DOC is awaiting toxicology reports, but from initial observation the incident with Lee and his cellmate was possibly a drug overdose.

“DOC sends our condolences to the families of Mr. O’Neal and Mr. Lee,” the spokesperson told DCist/WAMU. The spokesperson said that DOC is investigating where the drugs that may have caused overdoses came from.

Reports of the deaths began over the weekend. Ward 8 Councilmember Trayon White paid an emergency visit to the D.C. Jail on Sunday in response to community reports that people had died in the facility.

“I spoke to the family of an inmate that died [on Friday],” wrote Ward 8 Councilmember Trayon White in a press release Sunday. “The mother of the deceased is outraged, having last heard from her son on Mother’s Day.”

At a press conference Monday, D.C. Mayor Muriel Bowser said she did not want to get ahead of investigations determining cause of death, but said removing illegal drugs from the jail is a priority for her administration.

“I don’t know that any jail is contraband-proof, but we certainly have our focus on keeping all illegal items out of the jail,” she said. “When our investigation is complete, we’ll know more.”

Concerns about contraband drugs in the jail have existed for years.

A D.C. Corrections officer was arrested in February for allegedly smuggling knives, drugs, and cellphones into the jail in exchange for money. A status hearing in that case is scheduled for May 27.

And concerns about drug use in the jail were part of a litany of complaints highlighted in a memo the U.S. Marshals Service issued last year after it conducted a surprise inspection of the jail. (The Marshals Service has custody of some people held in the jail, including people who are awaiting court appearances in federal cases, people who are awaiting assignments to federal prisons after sentencing, and people who are in the D.C. Jail as they go through certain legal processes or make court appearances.) According to the memo, “evidence of drug use was pervasive” in the facility.

Following the memo’s publication, the D.C. Department of Corrections entered into a memorandum of understanding with the Marshals Service and promised to address conditions in the jail. People detained at the jail, along with defense attorneys and advocates, say deplorable conditions have persisted at the facility for years — long before the Marshals Service issued its memo.

White also wrote in his release that as he toured the facility on Sunday, he heard additional “concerns of mistreatment and inhumane conditions” from residents detained at the jail.

“The Councilmember met with an inmate in solitary confinement complaining that he was not receiving medical treatment despite suffering injuries from a gunshot wound to the head,” wrote White, who said he had been in touch with DOC leadership, as well as the city’s Corrections Information Council, about his concerns.