THE family of a brother and sister killed in a motorway horror crash today paid tribute to their "beautiful angels".
Lilly and Smaller McCann, aged four and 10, died in the "drink-drive" smash between a lorry and car in Buckinghamshire.
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Lilly McCann, four, was one of the kids who tragically died in the M1 crash last night Credit: Facebook 6
Tributes have been paid to 10-year-old Smaller McCann who was also killed in the collision near Milton Keynes yesterday
Tragedy struck just hours after Smaller had celebrated his 10th birthday with his family.
A 35-year-old woman from Derby has been arrested on suspicion of causing death by dangerous driving and driving over the legal alcohol limit.
The much-loved siblings were passengers in a white Vauxhall Astra that collided with a lorry near Milton Keynes at around 11.10pm on Monday.
Heartbroken family and friends have taken to Facebook to pay tribute to the brother and sister.
One wrote: "Life is cruel to take them away from my lovely brother.
"Best old father in the world, he put them first no matter how hard he hit they were his life please god give him the strength."
And the children's aunt said: "RIP my perfect little niece and nephew.
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"Aunt Elizabeth’s old pet Smaller and me little frilly Lilly.
"Love you always and forever and never in this lifetime will you ever be forgotten, always loved."
A friend of the family added: "Mortal divine RIP beautiful angels.
"So sorry for your loss, their poor mommy and daddy."
'LITTLE ANGELS'
Paying tribute to Lilly and Smaller, one of their cousins wrote: "Can't believe I'm even writing this but rest in peace to my two beautiful little cousins Smaller and Lilly.
"I love you with all my heart. I love you so much this don't even feel real.
"What has this world come to, hearts in bits. RIP my babies."
Another child passenger in the Astra and the driver were taken to hospital but have since been discharged.
The driver of the HGV was uninjured.
Sergeant Dominic Mahon, of Thames Valley Police, said: “My thoughts remain with the family of the two children who sadly died at this extremely difficult time.
“We are appealing for anyone who may have witnessed this collision or anyone who may have dash-cam footage that may have captured what happened or either of the vehicles prior to the collision to please get in touch.
“You can make a report by calling 101 or online, quoting reference 43210356500.”
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'Angels' Smaller and Lilly McCann tragically died in the collision Credit: Facebook 6
The brother and sister were passengers in the car Credit: Facebook 6
Police cordoned off two lanes of traffic after the accident last night 6
The crash caused ten hours of road delays Credit: Highways England