Police officers found two young children dead after responding to several 911 hang-up calls from an apartment in Miami, officials said.

Miami officers responding to the calls looked inside the apartment late Tuesday and saw the children, police spokesperson Michael Vega told news outlets.

MIAMI INSTAGRAM MODEL NOT CHARGED IN BOYFRIEND'S DEATH 'BECAUSE OF HER PRIVILEGE,' BROTHER ALLEGES

"Fire rescue was called to the scene and declared both children were deceased," he said.

Their cause of death will be determined by an autopsy.

The children appeared to be about 6 and 3 years old, Vega said.

FLORIDA MAN, SISTER-IN-LAW FIGHT OFF ATTEMPTED ROBBERS ON STREET: 'WWE STUFF'

Police officers spoke to a woman at the scene "who appeared to be irate or going through a crisis," Vega said. Her relationship to the children remained unclear. The Miami Herald reported that investigators were expected to question the 41-year-old woman.

CLICK HERE TO GET THE FOX NEWS APP

No additional details were immediately released.