21.   Most truckers joined the strike Monday, the day that activities in the western Colombia port of Buenaventura were halted, an official at the Transportation Ministry said.

22.   Neither of the two other large unions has said it will join the strike.

23.   Northwest has warned non-pilot workers they could be fired for joining the strike.

24.   Sanitation workers in several cities joined the strike as well.

25.   Schools are closed for three days in anticipation of the strike, and even three former presidents have agreed to join the strike.

26.   Schools, hospitals and the state-run telephone company France Telecom have said they will join the strike.

27.   State schools remained closed after more than half the teachers joined the strikes for the first time yesterday.

28.   State schools remained closed after more than half the teachers joining the strikes for the first time yesterday.

29.   Some industries began experiencing power shortages as electric utility workers joined the strike.

30.   Teachers joined the strike Friday morning, releasing pupils several hours before normal closing on the premise that the lack of janitorial services made the schools unsanitary.