BREAKING NEWS: Germanwings co-pilot DELIBERATELY crashed Flight 4U9525 into mountain to 'destroy the plane' after locking his captain out of cockpit, reveals French prosecutor 

• Black box voice recorder reveals final chilling moments of Airbus A320
• Prosecutor: 'Death was instant. You only hear screams in final seconds'  
• Co-pilot was named today as 28-year-old German Andreas Günter Lubitz
• Prosecutor says he does not believe disaster was terrorism or suicide

The co-pilot of the doomed Germanwings Airbus A320 locked his captain out of the cockpit before deliberately crashing into a mountain to 'destroy the plane', it was sensationally revealed today.

French prosecutor Brice Robin gave further chilling details of the final ten minutes in the cockpit before the Airbus A320 plunged into the French Alps killing 150 people.

Revealing data extracted from the black box voice recorder, he said the co-pilot - named as 28-year-old German Andreas Lubitz - locked his captain out after the senior officer left the cockpit.

At that point, Lubitz uses the flight monitoring system to put the plane into a decent, something that can only be done manually. 

He said: 'The intention was to destroy the plane. Death was instant. The plane hit the mountain at 700 km per hour.

'I don't think that the passengers realised what was happening until the last moments because on the recording you only hear the screams in the final seconds'.  

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First picture: Germanwings co-pilot - 28-year-old German Andreas Günter Lubitz (above) - locked his captain out of the cockpit before deliberately crashing into a mountain to 'destroy the plane', it has been revealed

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French prosecutor Brice Robin sensationally reveals that the co-pilot of the doomed Germanwings Airbus A320 locked his captain out of the cockpit before deliberately crashing into a mountain to 'destroy the plane'

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Locked out? Inside the cockpit of an Airbus A320. Audio files claim that the pilot could be heard knocking lightly on the door before trying to smash it down

A purser's Airbus cockpit EMERGENCY access procedure

Earlier in the flight, Mr Brice said Lubitz's responses, initially courteous, became 'curt' when the captain began the mid-flight briefing on the planned landing of the plane.

The captain - named by local media as German father-of-two Patrick S - then leaves the cockpit but finds he is locked out when he tries to re-enter.

Mr Robin said: 'We hear the pilot asking the co-pilot to take over and we hear the sound of a chair being pushed back and a door closing so we assume that the captain went to the toilet or something.

'So the co-pilot is on his own, and it is while he’s on his own that the co-pilot is in charge of the plane and uses the flight monitoring system to start the descent of the plane. 

'At this altitude, this can only be done voluntarily. We hear several shouts from the captain asking to get in, speaking through the intercom system, but there’s no answer from the cockpit.’ 

Mr Robin said Lubitz 'voluntarily' refused to open the door and his breathing was normal throughout the final minutes of the flight.

Read more: http://www.dailymail.co.uk/news/