The Prime Minister, 56, swapped Downing Street for his running trainers on Sunday as he took part in the world's biggest half marathon. UK Prime Minister Andy Burnham speaks about his reasons for competing in the Great North Run. Key points and original sources are listed below.

• The Prime Minister, 56, swapped Downing Street for his running trainers on Sunday as he took part in the world's biggest half marathon.S1

• UK Prime Minister Andy Burnham speaks about his reasons for competing in the Great North Run.S2

• Mr Burnham, wearing a Number 10 bib, was running in the half marathon to raise money for Changing Lives.S3

• Andy Burnham has previously completed the iconic half marathon as mayor of Greater ManchesterS4

• The Prime Minister, who is making a charity contribution from his own salary, has taken part in the world-famous run before - finishing with an impressive time of 1:55:24 - before heading to the pubS5