Part of a crane struck the 12th floor of 3 World Trade Center, which is still under construction, New York City officials said Thursday.

Fire officials said a crane had lowered material to the ground at about 8:30 p.m. and was bringing the cable and ball back up to the top when a gust of wind caused the ball to crash into a window.

There were no injuries and no debris fell to the ground.

An official with the city's Office of Emergency Management said the crane has been secured to the building, which currently is 45 stories high.

A spokesman for the builders, Tishman Construction, said safety inspectors were at the site investigating the incident. He said the glass panel will be replaced.

The future 80-story building is one of three skyscrapers replacing the Twin Towers destroyed in a terror attack 15 years ago. It's expected to open in early 2018.