Police are looking for two men seen near a school where a home-made nail bomb exploded inside a teacher's car.
Pupils narrowly escaped injury when the device, thought to be a large firework with nails buried inside, went off only minutes before the end of the school day.
No-one was injured in the blast in the car park outside Runnymede St Edward's school in Sandfield Park, West Derby, Liverpool at around 2.50pm on Friday.
Merseyside Police said one of the men was white, stocky, about 5ft 10in and aged between 40 and 50 with light-coloured hair. They have no description of the second man.
A police spokesman said the car was being examined by forensic officers, and detectives were conducting house-to-house inquiries.
Detectives will also examine CCTV from outside the school and forensic evidence gathered from the scene.
Superintendent Ian Pilling, from Merseyside Police, said it was a "despicable" crime.
"Certainly from what I have seen, anybody in the vicinity of the vehicle could have been injured or killed," he said.
"This was a despicable offence. Children were in the process of leaving. Nobody was killed or injured but that was down to good luck."
The car, a silver saloon, was parked 30ft from the windows of the £4,500-a-year independent school.
Two hunted over school nail bombing - Yahoo! News UK
Two hunted over school nail bombing 
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