Initial reports now indicate that the dramatic incident aboard FlyDubai Flight FZ1073 may have been triggered by a fight between the pilots inside the cockpit.

The reported confrontation apparently led to the emergency aboard the Dubai-to-Tel Aviv flight, which earlier transmitted emergency code 7700 and then 7500 — the international code indicating a hijacking — prompting Israeli fighter jets to be scrambled.

The circumstances of the reported cockpit altercation, including why the hijacking code was transmitted, remain unclear.
The report has not yet been officially confirmed. This is a developing story.