LAKEWOOD, N.J. -- Authorities say a baby girl found crawling across a busy New Jersey street was unharmed after a neighbour and passing motorist came to her aid.

The child was spotted around 5 p.m. Saturday in Lakewood.

The motorist, Cory Cannon of Eatontown, told the Asbury Park Press he saw the girl on Joe Parker Road and initially thought she was a toy. But when he saw the child moving, he got out of his car to stop traffic.

At that same time, a neighbour got the baby and returned the child home.

Authorities say the baby may have left through a door that was left open by an older sibling. A woman at the home called the matter "an accident."

It wasn't clear how long the child was on the roadway.

The case remains under investigation.