PORTSMOUTH, N.H. (CBS) – The car towed from a Portsmouth Wal-Mart Thursday morning is not connected to the disappearance of a girl in Colorado.

Jessica Ridgeway (Photo from Westminster, CO Police)

Ten-year-old Jessica Ridgeway was last seen walking on her way to school in a Denver suburb on October 5.

The search expanded to New Hampshire Thursday morning when investigators towed an abandoned Buick station wagon with Colorado plates away from a Wal-Mart in Portsmouth.

Police said Thursday afternoon that the car was not connected to the disappearance of Ridgeway.

This development came a day after someone reported seeing a girl who looked like Ridgeway in Maine.

The caller told police the girl was in a station wagon with Colorado plates.

At a brief news conference Thursday, investigators in Westminster, Colorado refused to release any information about a body that was found in a field not far from Ridgeway’s house.

Police believe she was abducted and they’re confident her parents were not involved.