Metropolitan Police Commissioner Sir Bernard Hogan-Howe said that he was "shocked" by allegations that undercover officers hunted for information to smear the family of murdered teenager Stephen Lawrence.
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The Met Office has issued a warning as gusts of 40 to 50mph hit London, and there is heavy rain to come at the start of next week.
Keepers have the celebrating the arrival of the western lowland gorilla to 22-year-old mother Effie in captivity at the zoo.
Celebrities and campaigners have joined a huge rally urging world leaders to agree tough measures to curb global warming