A pilot stabbed another pilot on a FlyDubai flight.

The flight was going from the United Arab Emirates to Israel.

Israeli Prime Minister Benjamin Netanyahu said this.

The pilot tried to crash the plane.

The plane was flying from Dubai to Tel Aviv.

It had about 170 passengers.

Many of them were Israelis.

The plane lost half its height in about one minute.

It went from 33,000 feet down to 17,000 feet.

Israel sent fighter jets.

Israel was afraid someone might hijack the plane.

A passenger and a crew member broke into the cockpit.

They stopped the attacker, Netanyahu said.

Other crew members then took control.

They landed the plane safely in Tabuk, Saudi Arabia.

This was about one hour later.

Both pilots were hurt.

They needed treatment in a hospital, the airport in Tabuk said.

Netanyahu said Saudi Arabia arrested one of the pilots.

The distress call came at 8:44 a.m. local time.

This was about two and a half hours after the flight left Dubai.

It is not clear why the attack happened.

A plane carrying passengers from the flight landed in Israel on Wednesday evening.

The cockpit door is locked during flights for safety.

This rule started after the Sept. 11, 2001 attacks.

It is not clear how the passenger and crew member got in.

It is also not clear how a knife got on the plane.

Pilots walk through metal detectors and are checked carefully.

This event has made people worry about airline safety again.

In 2015, a Germanwings co-pilot locked the captain out.

He crashed the plane on purpose.

All 150 people on the plane died.