KANSAS CITY, Mo. (AP)- Kansas City police continue investigating the disappearance of Lisa Irwin, who was 10 months old when she was last seen in her home nearly a year ago.

Authorities said in a news release Friday they’ve checked more than 1,600 tips since Lisa was reported missing Oct. 4, 2011. Police say about 500 tips have been mistaken sightings, and several have stemmed from online rumors. There have been no arrests.

Investigators are currently following about a dozen tips.

Police also say leads provided by the family and their attorneys haven’t benefited the investigation. Officers would still like a one-on-one interview with Deborah Bradley, the baby’s mother, because she was the only adult in the home at the time of the disappearance.

The phone at the family’s home wasn’t taking messages Friday.

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