Schoolgirl, seven, killed in bouncy castle horror after it was lifted by winds and blown 150 yards across a park.

Summer Blackie, seven, was taking part in an Easter fair in Essex

• The girl was trapped in bouncy castle as it was blown 150m across park
• Was taken to hospital with serious injuries but later confirmed to have died
• Two people arrested on suspicion of manslaughter by gross negligence
• Police launch 'complex and thorough' investigation into cause of incident
• It is the second bouncy castle disaster at the park in the space of a year

This is the seven-year-old girl who tragically died after strong winds blew a bouncy castle more than 150m across a park in Essex while she was trapped inside.

Summer Blackie was taking part in an Easter celebration at Harlow Town Park, in Harlow, organised by Thurston Fun Fairs when a 'strong gust of wind' blew it off its moorings.

The girl, from Norwich, was rushed to hospital with serious injuries, but was later confirmed to have died.

Essex Police confirmed a 24-year-old woman and a 27-year-old man, both from Cambridgeshire, have been arrested on suspicion of manslaughter by gross negligence and remain in police custody.

It is the second bouncy castle disaster at Harlow Town Park in less than a year, after another collapsed with children inside in May 2015

Tributes for the schoolgirl have been flooding in following the incident, as family and friends struggle to come to terms with the shattering loss. 

This afternoon, a tearful family spokesman spoke from the doorstep of a terraced house in Harlow less than two miles from the park.

He spoke only to say the family are 'devastated' and asked for time to mourn Summer's loss.

A neighbour added: 'It's heartbreaking. I couldn't imagine it – that poor family. They're going to need time.

Among the tributes at the park's entrance is an Easter basket while another card on a bunch of flowers reads: 'God has taken a beautiful girl for his angel. RIP Princess.'

Floral tributes are being left by families at the gate to Harlow Town Park. One read poignantly: 'God has taken a beautiful girl for his angel. RIP Princess.'

The father of one little girl who left an Easter Bunny mug at the scene said simply: 'It is too much for me to even bear thinking about.' 

It is believed the dome-shaped inflatable carrying the girl blew over a number of trailers and caravans in the park and landed down a hill.

Ray Smith, a representative of the Showmans' Guild of Great Britain, said the tragedy was due to a 'sudden gust'.

He said: 'Had it been a consistent wind they would have closed down all the inflatables.'

Asked about how the inflatables were set up he said: 'I know the (Thurston) family and I am very confident they had staked it out properly. 

'Obviously there is a full investigation to be held into how this could have happened and to make sure it can never ever happen again.' 

He added: 'Everyone in the industry is feeling it and on behalf of the guild I would like to say that all our thoughts and prayers and with this little girl's family.

'We are shocked and devastated and no one here will ever get over it.' 

Emergency services were called at 4.15pm yesterday, with two ambulance crews and an East of England air ambulance arriving at the scene.

The girl was taken to Princess Alexandra hospital in Harlow, where she later died.

Footage of the aftermath of the tragic incident show several ambulances and police cars at the scene, as the girl was treated in the park

DI Stoten added: 'This is a very tragic incident where a young girl has lost her life. My deepest sympathies go out to her family.

'We are trying to establish the circumstances surrounding how the girl came to be injured and I urge anyone who was at the event and witnessed the incident to contact me.

'We are aware of video footage of the scene being circulated and ask anyone who captured the incident on camera to get in touch.' 

A police spokeswoman confirmed family liaison officers are currently helping the girl's parents. 

Conservative MP for Harlow Robert Halfon said locals have raised concerns at another tragic incident involving a bouncy castle in the space of a year.

He said: 'In the past few hours a number of residents have contacted me asking how this could happen and what is being done.

Meanwhile on Twitter, Yvonne Hazard, who was in a nearby restaurant, tweeted: 'I was in the Toby opposite Harlow Park when the tragedy happened today. Just awful.

'A lady who came into Toby's saw it rolling over & over. We was all praying no one was still in it. Such a tragedy.' 

Officers are working with the Health and Safety Executive as their investigations continue. 

Last year, parents who leapt into the inflatable to rescue their children described it as 'something out of a horror film'.