51.   After three days of skirmishes, Russian forces and Islamic rebels remained locked in a tense standoff Tuesday in the Caucasus Mountains.

52.   As ice, it can remain locked in the polar caps for tens of thousands of years.

53.   Bradley and his traveling core of advisors remain locked in the moment.

54.   Chancellor Helmut Kohl and rival Gerhard Schroeder remained locked in a tight race just four days before national elections, according to a poll published Wednesday.

55.   Diplomats from Canada and Japan remained locked in talks with China on Wednesday about the fate of North Korean asylum seekers hoping for freedom overseas.

56.   Ground forces remained locked in close combat.

57.   His statement suggested the country could remain locked in a power struggle that has stymied development and foreign aid and left many Haitians as poor and hungry as ever.

58.   Its landing gear remained locked in place during the flight.

59.   Much of Europe remained locked in the cold snap Thursday after an unusually bitter week across the continent.

60.   Much of Europe remained locked in a cold snap Tuesday after an unusually bitter week across the continent.