Police Execute Mystery Warrant in Search for Missing Mom Krista Dittmeyer Maine woman left car running with baby inside in New Hampshire parking lot.

April 25, 2011  -- Police trying to solve the disappearance of 20-year-old single mom have seized the car she left behind with her toddler inside, and have executed a second warrant that they won't disclose.

Krista Dittmeyer's car was found with the engine running, hazard lights flashing, the door open and her baby girl inside on Saturday morning.

Conway police executed two search warrants today in their search for Dittmeyer. One warrant is for the car. Police won't reveal information about the second search warrant. They believe Dittmeyer is the victim of a crime and would never willingly abandon her 14-month-old daughter.

Police found Dittmeyer's black Nissan Sentra near a fitness center in Conway, N.H., on Saturday morning. In the backseat of the car was 14-month-old Aliyah. Aliyah is in good condition and is in the care of family members.

"She would never ever, ever leave her in a car by herself, ever. We know that she would do whatever it takes to be here with her daughter," said Kathy Pratt, a family friend.

According to Conway police, officers responded to the report of an unattended car at around 6:30 a.m. The fitness center shares a parking lot with the Cranmore Mountain recreational center.

"We're actively investigating the case and exhausting all resources to do so...Anytime an adult is separated from a child for this length of time and is out of contact from friends and family, it gives us concern. We're particularly concerned in this case," said Conway Police Lt. Christopher Perley.

It's unclear why Dittmeyer drove an hour and a half to Conway, New Hampshire. She lives in Portland, Maine, and is originally from Bridgton, Maine. Her family last spoke to her Friday night. Dittmeyer's mother said that everything sounded normal when she talked to her daughter.

Kayla Dittmeyer, the missing woman's sister, flew from Colorado to Maine to help search for her sister.

"Please let us know you're safe. We need you. Your daughter needs you," said Kayla Dittmeyer, sister of the missing woman.

Frantic Facebook posts from family and friends suggest a dire situation.

"Krista is nowhere to be found. So very scared for her," read one post.

Krista Dittmeyer is described as 5-foot-2, weighs 117 pounds and has brown hair and brown eyes.

"We love you, we miss you...just show us a sign that everything's okay," Kayla Dittmeyer said.