Jurors determining the fate of Bill Cosby in his sexual assault trial announced Thursday that they were deadlocked and cannot come to a unanimous consensus, CNN reports.

The jury began deliberating Monday evening, and Judge Steven O’Neill, who is presiding over the case, asked them to go back into deliberation in another attempt to reach a consensus.

“I am required to read you an instruction. The jury foreman has informed me that you are deadlocked,” O’Neill said. “If you are still deadlocked, you should report that to me. If you’ve reached a unanimous decision on some of the charges, please report that back to me.”

If jurors are unable to reach a consensus, the judge will have to declare a mistrial.

The jury, which had been deliberating for roughly 31 hours, is composed of four White women, six White men, one Black man and one Black woman. The have been sequestered in a hotel for the trial after being bused in from Allegheny County, Pa.

The jurors have been tasked with determining whether the 79-year-old comedian is guilty of three charges of aggravated indecent assault: assaulting Andrea  Constand without her consent, assaulting her when she was unconscious and assaulting her using drugs to substantially impair her ability to consent. Prosecutors argued Cosby drugged and sexually assaulted Constand at his home near Philadelphia in 2004. At the time, Constand served as the director of operations for Temple University’s women’s basketball team.

He has pleaded not guilty to the charges.

During the past week of testimony, prosecutors called 12 witnesses and presented almost no forensic evidence. Cosby, whose attorneys only called one witness, declined to testify in his own defense.

If found guilty, the entertainer could face up to 10 years in prison for each charge.