A man has been attacked by at least one dog in a park in east London, Metropolitan Police has said.
The man, in his 40s, suffered injuries to his arms in the attack in Plaistow Park, Plaistow on Sunday morning. He may need plastic surgery, police said.
Police officers, including armed offices, attended the incident and destroyed one dog and contained and removed two other dogs to kennels.
Detectives are trying to trace the owner of the animals.