A spokesman for the Maryland medical examiner and for the prosecutor’s office declined Tuesday to release the report, and Marilyn J. Mosby, the state’s attorney for Baltimore, condemned the leak in a statement.

“As I have repeatedly stated, I strongly condemn anyone with access to trial evidence who has leaked information prior to the resolution of this case,” she said.

Lawyers for the officers released a statement saying they had not received the report, although Ms. Mosby is expected to turn it over to the defense by Friday. The newspaper reported that it had obtained a copy of the autopsy, and sources who verified it for The Sun requested anonymity because of the high-profile nature of the case.

Although the officers loaded Mr. Gray into the van on his abdomen, the medical examiner surmised that Mr. Gray may have made it to his feet and then been thrown into a wall when the van abruptly changed direction. Because he was not belted and he had his wrists and ankles shackled, he was “at risk for an unsupported fall during acceleration or deceleration of the van.”