Clashes between police and teachers leave six dead in Mexico

Violent clashes between police and members of a radical teachers' union who had blockaded a highway in southern Mexico have left six people dead and more than 100 injured, officials said.

The activists from the National Co-ordinator of Education Workers, or CNTE, are opposed to the mandatory testing of teachers as part of education reform and are also protesting over the arrest of union leaders on money laundering and other charges.