New robotic technology which can carry out repairs to leaking gas pipes from the inside is being tested in London. If successful, it means repair work can be carried out without the need for disruptive roadworks.
See the robot in action below.
More top news
London mayor Boris Johnson is backing Olympics supremo Seb Coe as his replacement.
Two police officers helping to guard diplomats have been sacked for sharing pornographic images on their mobile phones.
A 32-year old man from Hampton has been jailed for five years historic sexual assaults in the late 1990s.