BANGOR, Maine — Police released no new information Wednesday in their investigation into a 1-year-old’s death, but they announced that the Maine Attorney General’s Office is now involved, which indicates a crime may have occurred.

The Attorney General’s Office is in charge of investigating homicides and cases that lead to murder and manslaughter charges.

Police went to a 7 a.m. call for help Tuesday at a Bald Mountain Drive apartment. Shortly after noon, police issued a press release announcing an investigation into the baby’s death. They also reported that the child’s body was taken to the state medical examiner’s office in Augusta for an autopsy.

“We have nothing to release today,” a representative of the medical examiner’s office said Wednesday. “You’ll have to call back tomorrow.”

Bangor police Sgt. Paul Edwards, the Police Department’s spokesman, said the autopsy is not complete and the cause of death is pending.

“They just want to be sure,” he said by phone Wednesday. “It could be days. Hopefully, we’ll hear something soon.”

Meanwhile, a police officer remained posted outside the apartment Wednesday evening, according to Bangor police Sgt. Allen Hayden.

Edwards declined to release any other details, including who called police Tuesday, whether the child was a boy or a girl, whether the child was dead when rescue crews and police arrived, or who was at the apartment at the time.

A medical examiner’s investigation takes place any time a child under age 3 dies, Edwards said Tuesday. He said Wednesday that no new information was being released.

“I will e-mail everyone as soon as the Medical Examiner’s Office and Attorney General’s Office have more information,” he said in an e-mail.

A neighbor said a couple with a baby moved into the apartment several months ago.