A police officer was repeatedly beaten over the head during a raid on a suspected cannabis factory.
The male Met officer was tleft needing hospital treatment after being set upon at a home in east London.
Police said they had been called to Dorrington Point in Bow at about 11.30pm on Saturday after reports of drugs there.
A cannabis factory was reportedly found inside the home, where a 42-year-old man arrived as police attended.
He attempted to flee the scene, and a male police officer tried to stop him.
The officer was then struck in the head repeatedly before other police officers stepped in and detained the man, who was arrested on suspicion of drugs offences and GBH.
The injured officer was taken to an east London hospital where he was treated for multiple injuries to the head, a swollen left cheek bone a swollen left hand.
DS Mike Baines from Tower Hamlets CID: "This is another one of many examples of officers putting themselves in harm's way to catch and detain violent suspects. I'd like to pay tribute to the bravery of the officer who stopped him from evading police."
