A businessman has died after being pushed under a moving lorry as he chased a gang trying to raid his shop. Shammi Atwal confronted the men who entered his Barking cash and carry - armed with metal bars.
Detectives have praised the 45-year-old's bravery, and a murder investigation has been launched.
Police say up to 10 men entered the Glen & Co Cash and Carry in Barking yesterday morning.
Shammi Atwal and his wife - who are co-owners of the business - tried to stop them, causing the gang to flee.
Detective Chief Inspector Neale Baldock said: "This was a man trying to stop thieves robbing his business. He acted bravely in defence of his wife and managed to chase the robbers from his premises only for him to be pushed in front of a moving lorry.
"People in the community know who committed this appalling and cowardly crime and I would urge them to contact my officers."
British Transport Police are appealing for help in identifying a man who ran in front of two trains at Barking station. They have released CCTV images of the man on Saturday 7th September, as he spotted a number of uniformed police officers and jumped onto the tracks in front of a tube train.
He then ran onto the next set of tracks as a London Overground train was approaching, forcing the driver to apply the emergency brakes. Police are appealing for anyone who recognises the man to come forward.
PC Phil Church said: “Trespass on the railway is, in itself,extremely dangerous and irresponsible, but to run in front of moving trains is putting your life on the line. We don’t believe the man was injured during the incident ... but this was still extremely thoughtless behaviour."