By Chris Harris
October 11, 2016 04:43 PM
Source: Oviedo Police Department/Facebook

Police in Florida are handling the investigation into a 3-year-old boy’s suspicious death over the weekend as a homicide, but say they are in the early phases of their investigation, PEOPLE confirms.

According to Lt. Heather Capetillo of the Oviedo Police Department, investigators can’t yet say how the unnamed boy died, but are awaiting the results of an autopsy, which was completed Monday afternoon.

“It’s going to take time,” Capetillo tells PEOPLE, who adds, “No one is talking to us.”

Capetillo says police were dispatched to an Oviedo, Florida, home Sunday morning after a neighbor called 911 about an unresponsive child.

Police say the boy’s mother called the neighbor and asked that he go and check on her son, who she’d said she had left in the care of her boyfriend.

Capetillo says the boyfriend had called the boy’s mother when the child wouldn’t open his eyes.

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The neighbor initiated CPR on the boy, trying to save his life. However, Capetillo says those efforts were in vain — the child had already been long dead by the time the neighbor arrived.

Paramedics and police arrived soon after the neighbor called 911, and rushed the boy to a nearby hospital, where he was pronounced dead.

According to Capetillo, investigators believe the child was intentionally killed because “the scene was suspicious.” She would not elaborate on what about the scene raised detectives’ suspicions, but noted that, “on the surface,” the death appeared to be a homicide.

No arrests have been made, Capetillo tells PEOPLE.

“We are trying to figure out what happened here,” Capetillo says. “The mother and three other individuals we know of had access to the child. We still haven’t figured out all the players involved.”

Capetillo alleges the boy’s mother is refusing to speak with investigators about her son’s death, and that one of her cousins, who lives in her home, also isn’t helping police.

The mother’s boyfriend, though, is cooperating with detectives, Capetillo says.

Police still do not have a motive for the suspected killing.