Transcript for Jessica Ridgeway Amber Alert: Police Search for New Clues
To that desperate search for a 10-year-old girl near denver, colorado. Time and the weather are now factors in the hunt for jessica ridgeway. She failed to show up at school friday morning and there is no sign of where she went or what may have happened to her. Abc's clayton sandell has the story. Reporter: Good morning, bianna. This morning police say they will bring in a new set of search dogs to help find little jessica ridgeway. But there was no active police search for the 10-year-old overnight and they've called off volunteer search teams for later today. Investigators are desperate for clues in a case that so far has had precious few. In near freezing temperatures an army of over 800 volunteers came to help find jessica. Scouring fields, trails and hillsides saturday near her home. Right now they're just asking us to find anything that's out of the ordinary, any kind of evidence that we could find. Reporter: At roadblocks police and fbi agents are stopping everyone asking questions, searching cars. In the last couple of days, weeks, have you heard anything suspicious? Reporter: Cops are saturating the streets knocking on every door. A team of divers was sent to check a lake near jessica's house but found nothing. Police are even scanning social media for clues. We were hoping that we were going to get anything just a piece that was really going to steer this investigation and guide us into a more focused way and we still are -- it's a very broad investigation. We just don't have that piece yet. Reporter: Jessica left home friday morning to meet up with friends for the walk to school. But the girl with the pink and purple glasses never arrived. Her school called home but her moer sarah, who works nights and was asleep missed the call. She woke that afternoon to a nightmare. By the time she called police jessica had been missing eight hours. Investigators are now reviewing recent calls for possible connections. They note that just two weeks ago jessica's school sent home a letter warning about strangers. Now, even though there is a custody battle between jessica's mother and father who lives in missouri, police say the family is cooperative and there are no suspects. We still have not heard from jessica's mother. Friends say she is too devastated to speak publicly.
This transcript has been automatically generated and may not be 100% accurate.