Boeing has confirmed to the NYPD that a piece of aircraft wreckage found wedged between two buildings in New York City last week near Ground Zero is from a Boeing 767 and believed to be from one of the two planes that crashed into the World Trade Center towers.

A technician with Boeing (NYSE:BA) in Chicago, Ill., identified the part as a trailing edge flap actuation support structure, which helps move wing flaps, located near the landing gear. The discovery was made on Wednesday, with the piece of plane found between 51 Park Pl. and 50 Murray St. in Lower Manhattan. The find was made more than a decade after two planes crashed into the North and South towers of the World Trade Center on Sept. 11, 2001.

You can view a video of the recovered plane part below.

The airplane part “is believed to be from one of the two aircraft destroyed on Sept. 11, 2001, but it could not be determined which one,” the NYPD said in a statement on its official YouTube channel.

American Airlines Flight 11 hit the North Tower of the World Trade Center, and United Airlines Flight 175 crashed into the South Tower on 9/11. Both planes were Boeing 767s.

The New York City chief medical examiner was expected to sift through the soil where the plane part was found to determine if any human remains were at the site. That process is expected to be completed by Wednesday, according to the NYPD.

The department is then expected to remove the airplane part and transfer it to the NYPD property clerk, where it will remain until a decision is made “concerning its final disposition.”

The National Transportation Safety Board has previously taken airplane parts, but, since the plane part in question is from the 9/11 attacks, the piece may eventually find its way to a museum collection, according to the NYPD.