Thousands of Dutch school pupils walked out of lessons on Friday in wildcat protests organised online against lesson times.
There were walk outs in at least 15 cities and there were a number of incidents, with 20 teenagers arrested. In Middelburg 500 pupils occupied a crossroads, after which they clashed with police with batons.
Word about the demonstrations - against the official 1,040 hours of lessons a year - was spread using MSN and email.
