(CNN) — A piece believed to be from one of the airliners that hit the World Trade Center towers on September 11, 2001, has been found behind the site of an Islamic community center near ground zero, the New York Police Department said Friday.
Investigators are looking into how a part of what appears to be landing gear became wedged between 51 Park Place — the site of a controversial community center — and another building just a few blocks from ground zero.
“If you see how confined this space is, and you realize the chaos that existed on this street on that day, it’s not surprising,” NYPD Commissioner Ray Kelly said.
“No clean up went on in this 18 inch space.”
Even so, he said investigators were looking at all possibilities, including whether the part was intentionally placed between the two buildings.
“We are also looking into a possibility it was lowered by a rope,” he said, adding that the part appeared to be intertwined with a piece of rope.
But Kelly said an initial investigation show there are no marks on the walls between the two buildings consistent with such an object being lowered.
The part “includes a clearly visible Boeing identification number,” police said in a written statement released earlier in the day.
The part was discovered Wednesday by surveyors hired by a property owner. They called 911 to report that they’d found “apparently damaged machinery,” police said.
“The NYPD is securing the location as it would a crime scene, documenting it photographically,” the statement said.
The plane part will not be moved until after the medical examiner’s office completes a health and safety inspection. At that time, a decision will be made whether to sift the soil for possible human remains, the police statement said.
The plane part is about five feet long, three feet wide and a foot and a half deep, NYPD Deputy Commissioner Paul Browne said. It was discovered between the two buildings, in a space just slightly wider than one and one-half feet, he said.
The discovery of the plane part comes more than 11 years after the two airliners slammed into the towers of the World Trade Center.
In the years since, a number of pieces of debris as well as human remains have been discovered in Lower Manhattan.