Svetlana Grkovic Maksimovic, wife of a Ryanair passenger partially sucked out of a broken window on a flight from Greece to Germany, shows a picture of the plane's broken window in front of AHEPA hospital where her husband is hospitalized, in Thessaloniki, Tuesday. [Alexandros Avramidis/Reuters]

The US National Transportation Safety Board said Thursday it will lead the investigation into an incident in which a passenger was partly sucked out of a Ryanair ‌Boeing 737’s broken window over Greece last week.

The NTSB said Greece had delegated the lead role to the agency in the probe.

A piece of engine broke off the Boeing 737 NG and smashed the window shortly after takeoff from Thessaloniki in Greece on July 10, according to video and the Federal Aviation Administration. The plane, ⁠headed to Germany, lost pressure and made an emergency landing.

Fellow passengers held on to the person pulled out of the window, Serbian national Ljubisa Karovic. He was injured and hospitalized.