Live programs on the British Broadcasting Corp.'s four national radio channels and two television channels were canceled or shortened Monday as workers staged a 24-hour strike over a pay dispute.

The walkout involves more than 18,000 of the publicly funded corporation's 25,000 workers, including 1,200 journalists, 3,000 technicians, about 1,000 electricians and 13,000 members of the Broadcasting and Entertainment Trades Alliance.The strike began at midnight, stopping many hourly radio newscasts.

Broadcasting unions are demanding a 16 percent pay raise and have voted in favor of staging a series of one-day stoppages. The BBC has offered an average 7 percent rise.