D.C. police said Friday they are still searching for leads in the death of an infant girl who was abandoned in front of a home in Northeast D.C. in January.

This week the medical examiner’s office determined that her death was the result of hypothermia and ruled it a homicide.

At a press conference Friday, Cmdr. George Kucik said the child was believed to be only a few days or a week old when she died. Police have received many tips, but so far they’ve all led to “dead ends,” Kucik said.

The girl was pronounced dead at a hospital on Jan. 15 after being found by two passersby in the 3000 block of Channing Street.

“We’re trying to put this back out there to the public to generate any leads,” Kucik said.

Police hope a witness comes forward, or someone who knows a woman who was pregnant earlier this year, but may not have a baby now, he said.

“I think someone out there knows something, and I hope someone will come forward and help us close this” case, Kucik said.

Officials have offered a $25,000 reward for information that leads to an arrest. Anyone with information is asked to call police at 202-727-9099.