Specialist tree surgeons are installing slow release chemicals to encourage the roots to grow. They will also use a crane to remove a number of the heavier limbs to prevent the tree from falling or blowing over.
More top news
The body of a 15-year-old boy has been recovered from the River Thames after he was spotting in difficulties in the water.
A woman and a boy have been killed after a car police were pursuing crashed into a family.
A 23-year-old man has died after being injured in an altercation inside a minicab.