51.   Their action caused a glitch in European unity, as France insisted it would not follow until there was progress on concerns of non-proliferation and human rights.

52.   When he refused to leave, he said Burmese officials threatened him with arrest, to which he responded that such an action might cause a diplomatic problem.

53.   Fuel tanker drivers often go on strike in Nigeria where their action causes traffic chaos.

54.   The trade union action caused serious disruption to traffic in the city centre.

55.   Well-meant action could also cause needless separations.

56.   Last week the action caused severe disruption to Air Inter services.

57.   Previous such actions have caused major disruption to air services.

58.   Strike action caused minor problems for Paris commuters Wednesday, with slight disruption to metro and RER suburban train services in the early morning, officials said.

59.   Strike action caused severe disruption on Tuesday, with long delays and a significant number of cancellations.

60.   The action was causing major snarlups in Britain where thousands of motorists and lorries faced long delays crossing to the continent.