London bus drivers have walked off the job over a dispute about their pay during the Olympics.
Bus companies Arriva, Metroline and London General were granted a High Court injunction to prevent their workers going on strike, which means around a quarter of services will still operate.
But the Unite Union said its members at 17 other bus firms are sticking to their plan.
Mayor Boris Johnson has said those who strike will not be eligible for an Olympics bonus.
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