Labour's Tessa Jowell, who is seen as a frontrunner for the party's London mayoral candidacy, has attacked Boris Johnson over his plans to stay on as Mayor even he is elected as an MP.
Londoners need representation by their Mayor day-in day-out. Transport, homes or jobs, Londoners' challenges deserve undivided attention.
Mr Johnson announced earlier that he planned to run for Parliament in 2015 but also remain as London mayor until 2016.
Former Cabinet minister Ms Jowell has already said she is standing down from Parliament in 2015 and is believed to be targeting a run at the mayoralty.
She has previously said that “were I Mayor of London, I wouldn’t be like Boris, certainly not”.
More top news
A British paleontologist has discovered a new species of dinosaur while studying fossils in a Canadian museum.
Sebastian Michaelis, one of a small group of tasters employed by Tetley, can grade a variety of tea in just 15 seconds.
The number of obese diabetics undergoing drastic weight loss surgery needs to triple to tackle a "major problem" facing the NHS, Nice warns.