Shadow Olympics Minister Tessa Jowell said that Olympic security has not been jeopardised by the failure of G4S to recruit enough security staff. However, she added that questions need to be answered.
A committee of MPs has said the problems with recruiting security staff for the Olympics should have been foreseen.
The boss of the government's Olympics' security contractor G4S has faced a dressing down from MPs for his firm's poor performance.
The head of G4S is under pressure to quit his £830,000-a-year job as he prepares to face questions from MPs