Passengers described rushing the cockpit and a fight for control after the plane suddenly plummeted, losing around 17,000 feet of altitude in the span of a minute, according to the Flightradar24 website. US President Donald Trump warned on Thursday that Iran will be “hit very hard” if it is found to be linked to a pilot’s attack on a flydubai flight to Israel. Key points and original sources are listed below.

• Passengers described rushing the cockpit and a fight for control after the plane suddenly plummeted, losing around 17,000 feet of altitude in the span of a minute, according to the Flightradar24 website.S1

• US President Donald Trump warned on Thursday that Iran will be “hit very hard” if it is found to be linked to a pilot’s attack on a flydubai flight to Israel. The dramatic events a day earlier saw passengers help stop the plane from crashing, making an emergen...S2