A heavily-pregnant teenager and her husband who were killed in a high-speed police pursuit.
Newlyweds Patrick and Shauna McDonagh - who were expecting their first child together - were tailed by at least nine police cars and a helicopter before the horror crash in west London on Sunday night.
The couple were thought to have been suspects in an aggravated burglary that took place north of the capital in Pinner, Harrow, a short time earlier.
But the Independent Office for Police Conduct (IOPC) today confirmed the couple were not present at the time of the aggravated burglary that prompted the officers' response.
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Patrick McDonagh, 19, and Shauna, 18, (pictured together) were tailed by at least nine police cars and a helicopter before the horror crash in west London on Sunday night. The pair were killed after their car smashed head on into a coach while driving on the wrong side of the A40
A coach was also pictured with a large chunk missing from its front bumper following the crash
The shattered wreckage of a Renault Megane people carrier was pictured in the middle of the A40 after the high-speed crash on Sunday night
Mr McDonagh, 19, and his wife, 18, who got married just 11 weeks ago, were pronounced dead at the scene after their car smashed head on into a coach while they were driving on the wrong side of the A40 dual carriageway.
Their unborn baby girl, who was due in April, is not believed to have survived the crash. A third person in the car was taken to hospital and has since been arrested on suspicion of aggravated burglary.
Patrick and Shauna McDonagh (pictured) were pronounced dead at the scene
Three victims - a man in his 30s, a woman in her late 50s and a man in his late 60s - were threatened with a 'large hunting knife' and screwdriver after being confronted by four men during a raid in north London.
The younger victim was punched in the face before the thieves fled the scene with cash and jewellery.
In a statement today the IOPC said the couple were driving on the wrong side of the road.
The statement said the crash took place on the A40 in East Acton, west London around 9pm Sunday 10 February.
The IOPC added: 'Shauna McDonagh aged 18 who was pregnant and Patrick McDonagh, aged 19, were pronounced dead at the scene.
'A second man who was travelling in the car was taken to hospital. A large number of people travelling on the coach were checked by paramedics at the scene with two taken to hospital with minor injuries.
It is understood that police were pursuing the car, a Renault Scenic, for about 10 minutes but terminated the pursuit prior to the crash. A National Police Air Service helicopter was monitoring the progress of the Renault when it crashed.
'It has now been confirmed, as part of a separate police investigation, that the occupants of the Renault were not present at the time of an aggravated burglary reported to have taken place in Harrow.'
The IOPC investigation will now examine the information the police had and the rationale for the pursuit.
IOPC regional director Jonathan Green said: 'My thoughts are with the families and friends of Patrick and Shauna, those injured and
