KANSAS CITY, Mo. — The parents of a 10-month-old girl who was apparently snatched from her crib said today they frantically searched their Kansas City home for any sign of her but found only an open window, an unlocked front door and house lights blazing.

Whoever took Lisa Irwin either late Monday night or early Tuesday also stole the couple’s three cellphones — including one that doesn’t work, Jeremy Irwin and Deborah Bradley said during a tearful news conference.

Irwin said he knew immediately that something was wrong when he returned home from work about 4 a.m. Tuesday. He first checked on his 6- and 8-year-old sons and then went to Lisa’s room and discovered her gone.

Investigators today extended the search to a nearby heavily wooded area, an industrial park and the sewers.

About 100 officers scoured the industrial park and adjacent woods this morning. One of the searchers told a reporter to leave the area and refused to comment on the investigation. Others lifted sewer drain covers and looked inside.

Randy Thurston, a warehouse manager, says officers had also been through the industrial park, searching trash bins and pipes.