Nearly 50 cops searched an Indianapolis landfill Sunday for a 3-month-old girl who has been missing since Friday and is believed dead.

Police moved their search for baby Janna Rivera to the landfill Sunday morning, Fox 59 reported. The Indianapolis Police Department said the search was called off at 1 p.m. without finding the baby.

Police spokesman Lt. Richard Riddle briefed reporters on the search while it was taking place.

“We have a large area of trash that we are doing a very methodical grid search within that trash,” Riddle said.

Police were told Janna had been tossed into a garbage container on the other side of the city Friday morning.

Riddle said on Saturday police conducted a search of a transfer station where trash from the dumpster had been taken “with negative results.”

Fox 59 said investigators do not believe the baby is still alive.

Information that Janna had been left in a dumpster came from the infant’s father, who is the boyfriend of Janna's mother.

“The father was the last known individual who saw the child alive, so that is why he remains a person of interest today,” Riddle said.

Detectives detained the father and questioned him after the baby was reported missing Friday. Riddle said the father was later released from custody.

The mother was at work Friday morning. When she came home she called 911 to report that the baby was gone. Her call also stated that the infant was dead. The names of the mother and the father have not been released. 

A Fox 59 reporter spoke to the mother’s landlord, who said the mother had contacted her to say the baby was dead and that her boyfriend had taken her. 

“She called me … to say that her daughter died and she didn’t know what happened,” landlord Yesenia Guerra told the station.

Riddle said the search for Janna will resume.

“We will not stop until we can determine what happened to baby Janna,” he said.

Detectives urge anyone with information on this case to please call 911 or Crime Stoppers of Central Indiana at (317) 262-TIPS (8477).

Click here for more from Fox 59.