The Liberal Democrats' election campaign 'Battle Bus' has broken down for the second time in two days.
Deputy Prime Minister and party leader Nick Clegg was aboard the bus when it came to a stop in the Crouch End part of London.
Mr Clegg was whisked away by security officers while others awaited help.
Yesterday evening the Battle Bus also ground to a halt in Brixton - this time without the party leader on board - when it developed an electrical fault.
Party officials and journalists were forced to abandon the vehicle as a number of attempts to restart it proved unsuccessful.