A teenager has been sentenced after a boy was threatened with acid and robbed of his coat in a high street fast food shop.

The 17-year-old, from London, had been convicted of robbery at Southend Youth Court on April 16.

He received a six-month detention and training order with a condition attached to pay the victim £500 in compensation.

The victim, 15, was approached by two people in a fast food shop on Brentwood High Street in February last year.

He was shown a bottle of acid by one of the duo, Essex Police said, held under his nose to prove the contents genuine.

After being threatened the boy handed over his coat, the force added.

"I struggled to sleep every night because the incident kept replaying in my head vividly," the boy said in court.

"I felt as though I was blaming myself and felt guilty for what had happened to me," he added.

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The sentenced boy, who cannot be named due to his age, was arrested on March 8 this year.

He denied a charge of robbery but was convicted after a trial.

Det Con Joshua Yelland said: "This was a serious offence which would cause fear and panic to any right-thinking member of the public – let alone a 15-year-old boy.

"I want the public to know and understand incidents which involve the threat or use of serious violence are taken extremely seriously," he added.

Police had reviewed CCTV footage and circulated images of the suspects with the Metropolitan Police to establish that the pair may have travelled by train to London after the robbery.

Police support has been in place to help the 15-year-old victim since and Det Con Yelland praised him for coming forward.

“Support was in place for him from the start of our investigation and I would praise his patience and maturity in sticking with us through the court process," he added.