Ollie Johnson, 15, reported as missing in London after leaving County Durham

Police are asking for help to find missing 15-year-old Ollie Johnson.

He is thought to have travelled to London after last being seen in the County Durham town of Consett around 6.30pm on Tuesday.

Officers are becoming increasingly concerned for his welfare and anybody with information is urged to call 999.

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The appeal to help find Ollie was posted on the Durham Constabulary Twitter account @DurhamPolice at 10:07pm on Wednesday.

According to the Missing People charity, somebody is reported missing every 90 seconds in the UK, equating to a total of 170,000 people.

Of that number, almost 98,000 are adults and more than 70,000 are children.

The charity also states that 75 per cent of adults are found within the first 24 hours of being reported missing and 85 per cent are found within two days, while five per cent are not found in the first week.

For children, the respective figures are 80 per cent, 90 per cent and two per cent.

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