Tank 'was overflowing' at Buncefield.(News)

A storage tank at the Buncefield oil depot was overflowing for more than 40 minutes before a series of explosions last December, a report has said.

The Health and Safety Executive said petrol was piped into the tank at the plant in Hemel Hempstead, Hertfordshire, for 11 hours before the blasts--which occurred on December 11.

By 0520 the tank was full, but no-one noticed and 41 minutes later the explosions began, injuring 43 people.

The HSE will not blame anyone "to avoid prejudicing" any possible legal action.

Hemel Hempstead's Conservative MP, Hike Penning, has called for a public inquiry into the blast.

The HSE and Environment Agency have been charged with finding out the causes and environmental impact of the explosion, described as the largest in peacetime Europe. …

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