Police are reportedly scouring a New Hampshire pond in their search for a young Maine mother last seen on Friday.
The pond is less than a mile away from where 20-year-old Krista Dittmeyer's car was found abandoned in Conway, N.H., TheBostonChannel.com reports. Authorities have not said if any clues have been found in the snowmaking pond, located at a White Mountains ski resort, according to the website.
Authorities said Dittmeyer, who lives in Portland, Maine, is considered missing and endangered. Her black Nissan Sentra was found early Saturday in a New Hampshire parking lot with its engine still running and her baby daughter inside.
Investigators canceled a Wednesday afternoon press conference on Dittmeyer and referred all inquiries to the Attorney General's Office. Assistant Attorney General Jane Young, one of the office's homicide prosecutors, is in charge of the investigation.
Young told FoxNews.com Wednesday she had "no comment" on whether the case was now a homicide investigation or if Dittmeyer's body had been found.
A police source confirmed to FoxNews.com that investigators found what they believe is blood evidence inside the car.
Authorities said Dittmeyer last talked to family members by phone at around 8 p.m. Friday.
Police received a call from a passerby at around 6:30 a.m. Saturday who reported Dittmeyer's car in the Cranmore Mountain resort parking lot with its hazard lights blinking and door slightly ajar. The young woman's 14-month-old daughter was unharmed in the backseat, but Dittmeyer was nowhere to be found.
Conway Police Lt. Christopher Perley told FoxNews.com he does not believe Dittmeyer left her car willingly.
"From a very early point in the investigation we drew the conclusion that she did not voluntarily absent herself from her car," he said during an interview.
Perley said police have obtained warrants to search two vehicles -- one being Dittmeyer's -- for clues in the case. He would not elaborate on the second vehicle being investigated. He also would not confirm whether blood was found in the vehicle, saying the Conway Police Department "does not comment on specific pieces of evidence."
Perley said police don't know why Dittmeyer drove to Conway, but noted that the young woman had a "number of social contacts" in the area.
The woman's sister, Kayla Dittmeyer, told the Portland Press Herald that she believes someone forced her sister out of the car and that her sister persuaded that person to leave her daughter behind.
"My sister is very headstrong, but she is also very bold and very honest. That is why I feel she is OK. She's a very strong person," Dittmeyer said of her sister, a single mother who works as a waitress. "I believe she is trying to talk her way through this."
"She would do anything for her," she said. "It was all so out of character for her. She would never put her daughter in harm's way."
Police say the father of Dittmeyer's baby's is currently in a Maine prison on a drug conviction, MyFoxBoston.com reports.
Dittmeyer's family is offering a $3,000 reward for help finding her. A vigil is also being planned for Thursday in Bridgton, Maine, where Dittmeyer's family lives.
Anyone with information on Dittmeyer's whereabouts is being urged to call the Conway Police Department at (603) 356-5715.
The Associated Press contributed to this report